The Ability of Your Immune System to Recognize New Types

The ability of your immune system to recognize new types of proteins and attack those that are harmful is an example of learning that occurs within the body at the cellular level that does not involve the brain. This form of learning illustrates:

A) The evolution of biointeractionism
B) How nurture can influence nature
C) How nature can serve to override the autoimmune system
D) How nature can serve to influence nurture
E) The nature-nurture paradox in reverse