Step 1: Understanding the Question:
This question tests knowledge of soil-forming processes.
Step 2: Detailed Explanation:
Gleization (A): Formation of concretions of Fe and Mn (III).
Laterisation (B): Process of desilication (I) (removal of silica).
Humification (C): Process of decomposition of organic matter (II).
Podzolisation (D): Removal of oxides of Fe and Al (IV).
Thus, the correct matching is A - III, B - I, C - II, D - IV.
Step 3: Final Answer:
Thus, the correct answer is A - III, B - I, C - II, D - IV, which corresponds to option (A).
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