Tropical Rain Forests Are Clustered near the Intertropical Convergence Zone

Tropical rain forests are clustered near the Intertropical Convergence Zone, which is:

A) a low and very hot area of land where one continental plate converges with another
B) a low and very hot area of land where two oceanic plates converge
C) almost exactly along the equator due to maximum solar radiation converging on plants
D) a curved boundary where winds converge near the equator