Three or Four of the Following Statements Are True and Correct

Multiple Choice

Three or four of the following statements are True and correct. Which one, if any, is False? If all the statements are True, choose answer E.

A) Carbon, hydrogen, oxygen, and nitrogen make up approximately 96% of living matter.
B) The trace element iodine is required only in very small quantities by vertebrates.
C) Virtually all organisms require the same elements in the same quantities.
D) Iron is an example of an element needed by all organisms.
E) All of the other statements are True and correct.