Concept:Ferralitic soils are heavily leached, iron-rich soils formed under high rainfall and high temperatures.Explanation:These soils develop where heavy rainfall washes out soluble minerals, leaving oxides of iron and aluminium.This process is most active in the hot, humid climate of the West African forest belt.Swampy coastlines have hydromorphic soils, deserts have arid soils, and savannas have less leached tropical soils.Answer:B. Forest belt