One principal function of the Class I and Class II major histocompatibility complex S proteins is to
Q. One principal function of the Class I and Class II major histocompatibility complex S proteins is to
A. transduce the signal to the T-cell interior following antigen binding
B. mediate immunoglobulin class switching
C. present antigen for recognition by the T-cell antigen receptor
D. stimulate production of interleukins
Answer: present antigen for recognition by the T-cell antigen receptor