Humans, monkeys and guinea pigs do not have the enzymes necessary for the biosynthesis of vitamin C, so they
Must include the vitamin in their diets. It is also required for the synthesis of collagen, which is the structural protein of skin, tendons, connective tissue and bone.
Although vitamin C does not have a carboxylic acid group, it is an acidic compound. Acidic character is shown by

Options

A. `-CH_2OH` group
B.
C.
D. all of these

Answer

C