Ketones,alcohols,aldehydes and Organic Acids Are Four of the Organic Compounds

Multiple Choice

Ketones,alcohols,aldehydes and organic acids are four of the organic compounds found in all living cells.What do these four classes of organic compounds share

A) They contain the same atoms but differ in structure.
B) They are chains of carbon atoms with functional groups that contain oxygen.
C) They are all fully oxidized.
D) They can only be synthesized inside a cell.