The Concept of "Immunologically Privileged" Explains Why the CNS ________

Multiple Choice

The concept of "immunologically privileged" explains why the CNS ________.

A) has a greater immune response than the rest of the body
B) has a reduced immune response compared to the rest of the body
C) has a completely different set of immune responses
D) has more MHC markers than other tissues
E) All of the choices are correct.