html file:
<template>
   <lightning-card title="Create Account Record" class="slds-align_absolute-center">
    <div class="slds-m-around_medium">
      <lightning-record-edit-form object-api-name={objectApiName} onsuccess={handleSuccess}>
         <lightning-input-field field-name="Name" required></lightning-input-field>
         <lightning-input-field field-name="BillingStreet"></lightning-input-field>
         <lightning-input-field field-name="BillingCity"></lightning-input-field>
         <lightning-input-field field-name="BillingState"></lightning-input-field>
         <lightning-input-field field-name="BillingPostalCode"></lightning-input-field>
         <lightning-input-field field-name="BillingCountry"></lightning-input-field>
         <lightning-input-field field-name="AccountSource" required></lightning-input-field>
         <lightning-input-field field-name="AnnualRevenue" required></lightning-input-field>
         <lightning-input-field field-name="Website"></lightning-input-field>
         <lightning-button variant="brand" label="Save" title="save" type="submit" onclick={handleSuccess}></lightning-button>
         &nbsp; &nbsp;
         <lightning-button variant="brand" label="Cancel" title="cancel" onclick={handleCancel}></lightning-button>
</lightning-record-edit-form>
</div>
   </lightning-card>
   
</template>

Js.file:
import { LightningElement,track } from 'lwc';
import { CloseActionScreenEvent } from 'lightning/actions';
import { createRecord } from 'lightning/uiRecordApi';
import { ShowToastEvent } from 'lightning/platformShowToastEvent';
import ACCOUNT_OBJECT from '@salesforce/schema/Account';
import NAME_FIELD from '@salesforce/schema/Account.Name';
import BILLINGSTREET_FIELD from '@salesforce/schema/Account.BillingStreet';
import BILLINGCITY_FIELD from '@salesforce/schema/Account.BillingCity';
import ACCOUNTSOURCE_FIELD from '@salesforce/schema/Account.AccountSource';
import REVENUE_FIELD from '@salesforce/schema/Account.AnnualRevenue';
import WEBSITE_FIELD from '@salesforce/schema/Account.Website';
export default class QuickAccount extends LightningElement {
   
    firstName = '';
    annualRevenue = '';
    accountSource = '';
    website = '';
    billingStreet = '';
    billingCity = '';
    industry = '';
   
   
    handleFirstNameChange(event) {
        this.accountId = undefined;
        this.firstName = event.target.value;
    }
    handleAnnualRevenueChange(event){
        this.annualRevenue=event.target.value;
    }
    handleAccountSourceChange(event){
        this.accountSource=event.target.value;
    }
    handleWebsiteChange(event){
        this.website=event.target.value;
    }
    handleBillingStreetChange(event){
        this.billingStreet=event.target.value;
    }
    handleBillingCityChange(event){
        this.billingCity=event.target.value;
    }
    handleIndustryChange(event){
        this.industry=event.target.value;
    }
    closeAction(){
        this.dispatchEvent(new CloseActionScreenEvent());
    }
   
   
    createAccount() {
        const fields = {}
        fields[NAME_FIELD.fieldApiName] = this.firstName;
        fields[BILLINGSTREET_FIELD.fieldApiName] = this.billingStreet;
        fields[BILLINGCITY_FIELD.fieldApiName] = this.billingCity;
        fields[REVENUE_FIELD.fieldApiName] = this.annualRevenue;
        fields[ACCOUNTSOURCE_FIELD.fieldApiName] = this.accountSource;
        fields[WEBSITE_FIELD.fieldApiName] = this.website;
       
        const recordInput = { apiName: ACCOUNT_OBJECT.objectApiName, fields };
        createRecord(recordInput)
            .then(account => {
                this.dispatchEvent(
                    new ShowToastEvent({
                        title: 'Success',
                        message: 'Account created',
                        variant: 'success',
                    }),
                );
            })
            .catch(error => {
                this.dispatchEvent(
                    new ShowToastEvent({
                        title: 'Error creating record',
                        message: error.body.message,
                        variant: 'error',
                    }),
                );
            });
    }
   
}

i am expecting below type:


but i am getting  below  for account source :