Based on the molecular formula and the un/do you calculate, check all the functional groups that could be present in compound D?
A. Benzene ring
B. Ester
C. Amine
D. Nitrile
E. Ring
F. carboxylic acid
G. Alkene
H. Alkyne
I. Ketone
J. Ether
K. ALcohol
L. Aldehyde
M. Epoxide