The following events elicit an antibody response. What is the third step?
A) Antigen-digest goes to surface of APC.
B) APC phagocytizes antigen.
C) B cell is activated.
D) TH cell recognizes antigen-digest and MHC II.
E) TH cell produces cytokines.
Answer: D) TH cell recognizes antigen-digest and MHC II.
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