Which of the Following Statements About Epitopes Are Correct

Which of the following statements about epitopes are correct?
I.B-cell receptors bind to epitopes.
II.T-cell receptors bind to epitopes.
III.There can be several different epitopes on each antigen.
IV.There is a one-to-one correspondence between antigen and epitope.

A) only I and III
B) only II and IV
C) only I, II, and III
D) only II and III
E) only I and IV