Why Is Chemical Weathering Relatively Rare in Deserts

Why is chemical weathering relatively rare in deserts?

A) Chemical weathering requires much colder temperatures than are seen in deserts.
B) Physical weathering occurs only in hot regions,thus is more prevalent in deserts.
C) Chemical weathering only occurs in the presence of salt water from the ocean.
D) Chemical weathering most often involves reaction with water,which is rare in deserts.