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ifthikar Ahmed 1ifthikar Ahmed 1 

can someone explain the answer

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Best Answer chosen by ifthikar Ahmed 1
Dhanya NDhanya N
Hi,

A. Use a custom controller
B. Use a custom controller with extensions
D. Do not specify a controller
Reference: https://developer.salesforce.com/docs/atlas.en-us.pages.meta/pages/pages_quick_start_basic_dashboard_components.htm