He ... There is no carbon-carbon double bond in his molecule, so he is wrong.
C the molecule contains two ester groups, which can be hydrolyzed to produce acetic acid, p-hydroxyaniline and so on. , so c is correct;
D. If only benzene rings can react with hydrogen, then 6mβ 1 Benoit can react with 6mβ 1 hydrogen, so D is wrong.
So choose C.