Answer the following questions by choosing the most appropriate option.

Transform the given assertive sentence into interrogative.
Everybody has heard of Amitabh Bachchan.

A. Has everybody heard of Amitabh Bachchan?

B. Isnt that everybody has heard of Amitabh Bachchan?

C. Everybody has heard of Amitabh Bachchan, isnt it?

D. Amitabh Bachchan is known to all, isnt it?

Please do not use chat terms. Example: avoid using "grt" instead of "great".