The common name of the following compound is

Benzophenone

The correct answer is Option (2) → Benzophenone

The structure shows a central carbonyl group (C=O) with two phenyl rings (C₆H₅-) directly attached to the carbon atom of the carbonyl.

This is the defining feature of benzophenone, also known systematically as diphenylmethanone or commonly as diphenyl ketone.

Benzophenone is widely recognized by this name in organic chemistry, used as a UV absorber, photoinitiator, and building block in synthesis.