The correct options are
A CH3−CO−Cl is more reactive than (CH3CO)2O
C CH3−COOC2H5 is more reactive than CH3−CO−NH2
The chloride ion of acetyl chloride is weaker base than the acetate ion of acetic anhydride.
Hence, acetyl chloride is more reactive towards hydrolysis than acetic anhydride.
Similarly, ethoxide ion of ethyl acetate is weaker base than amide ion of acetamide.
Hence, ethyl acetate is more reactive towards hydrolysis than acetamide.