[单选题]
When a proton passes through c.t5;arcc2,gb. bmjg matter, it is possible for i5pf cej8oa66b,0fmx *miv+q it to interact with the matter in such a way that an electron and a positron are produced; imoa56cx+ fjbiqv0f6,*pem8 this interaction is referred to as
A. the photoelectric effect.
B. the Compton effect.
C. pair production.
D. none of the given answers