Which of the Following Is a Unique Property of the Adaptive

Multiple Choice

Which of the following is a unique property of the adaptive immune system?

A) Highly diverse repertoire of specificities for antigens
B) Self-nonself discrimination
C) Recognition of microbial structures by both cell-associated and soluble receptors
D) Protection against viral infections
E) Responses that have the same kinetics and magnitude on repeated exposure to the same microbe