The correct answer is: B) High rainfall and alternating wet-dry seasons.
Laterite soils are formed in areas with high rainfall and alternating wet-dry seasons. The high rainfall causes the leaching of soluble minerals from the soil, leaving behind a layer of iron and aluminum oxides. The alternating wet-dry seasons cause the soil to crack, which allows the iron and aluminum oxides to be concentrated on the surface.
Option A is incorrect because low rainfall does not cause the leaching of soluble minerals from the soil.
Option C is incorrect because cold climates do not have high rainfall.
Option D is incorrect because laterite soils can be used for agriculture, but they require special management techniques.