![One principal function of the Class I and Class II major histocompatibility complex S proteins is to](https://www.gkseries.com/blog/wp-content/uploads/2022/01/One-principal-function-of-the-Class-I-and-Class-II-major-histocompatibility-complex-S-proteins-is-to.png)
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