The Immune System Is Capable of Mounting Specific Responses to Particular

The immune system is capable of mounting specific responses to particular microorganisms because ______.

A) lymphocytes are able to change their antigen specificity as required to fight infection
B) the body is able to determine which type of B and T cells to make
C) the body contains an enormous diversity of lymphocytes, each with a specific kind of antigen receptor
D) the body is able to make different antigen receptors depending on the invading microorganism