Which Statement About Vitamins Is True

Multiple Choice

Which statement about vitamins is true?

A) The list of required vitamins is the same among different animal species.
B) Humans require 20 different vitamins.
C) Vitamins are required in amounts much smaller than those of essential amino acids and fatty acids.
D) When taken in excess, fat-soluble vitamins are excreted in urine.
E) When taken in excess, water-soluble vitamins accumulate in fat and can reach toxic levels.