Which of the Following Is Valid for How Rocks Weather

Which of the following is valid for how rocks weather?

A) Quartz is very soluble during weathering at low temperatures.
B) Limestone weathers rapidly in wet climates but can form cliffs in dry ones.
C) As a granite weathers,quartz rapidly decomposes into clay minerals.
D) Most minerals in granite weather at nearly the same rate and so granite has smooth surfaces.