![](https://cos-cdn.shuashuati.com/pipixue-wap/2020-1230-1107-56/ti_inject-812ce.png)
For effect Th2 cells, which of the followings are correct ?
A.
Mainly mediate defense against infections by extracellular microbes.
B.
Act in stimulating clonal expansion and differentiation of CTL cells.
C.
Interact with B cells and induce B cell activation and differentiation into plasm cell.
D.
Secret IL-4, IL-5, IL-10 and act in antibodies secretion.
E.
Secret IL-2, IL-12 and active macrophage.