Correct option is A
Gleization results in the formation of Fe/Al concretions under poor drainage – A–III
Laterization involves desilication under intense leaching in humid tropics – B–I
Humification is the decomposition of organic matter – C–II
Podzolization removes oxides of Fe & Al – D–IV
Thus, the correct match is: A–III, B–I, C–II, D–IV.