which statement explains why weather occurs more quickly in tropical rainforest?

a. the dry conditions in tropical rain forests cause chemical weathering from blowing sand.
b. The high moisture and humidity in tropical rain forests cause chemical weathering.
c. The high, dry winds in tropical rain forests cause mechanical weathering.
d. The high moisture and humidity in tropical rain forests cause mechanical weathering.

this question isnt on here yet so im putting it up even though i already know the answer. do answer though so i doesnt get taken down and other k12 students can use it.
oh sorry the answer was b.