The Complete Second Signal for B Cell Activation Requires Which

Question

The complete second signal for B cell activation requires which of the following interactions?
A) Interleukin-4 release
B) cytokine-cytokine receptor interaction
C) TH-B cell interaction
D) All of these are necessary.

Accepted Answer

The complete second signal for B cell activation requires all three of these interactions: interleukin-4 release, cytokine-cytokine receptor interaction, and TH-B cell interaction. Without any one of these, the B cell will not receive the complete signal necessary for activation.