Step 1: Match each soil order with its defining characteristic. (Note: "Zatisol" is likely a typo for Entisol).
- A. Spodosol: Acidic forest soils common in cool, humid climates with coniferous forests. Matches with III. Humid climate.
- B. Oxisol: Highly weathered tropical and subtropical soils, rich in iron and aluminum oxides, resulting in a reddish color. Matches with IV. High in iron.
- C. Mollisol: Fertile grassland soils with a thick, dark surface horizon rich in organic matter, exhibiting a I. Granular and crumb structure, suitable for agriculture.
- D. Zatisol (assuming Entisol): Young soils with minimal profile development and no distinct horizons. Matches with II. Lack of profile development.
Step 2: Consolidate the matched pairs.
The identified pairings are:
- A \(\rightarrow\) III
- B \(\rightarrow\) IV
- C \(\rightarrow\) I
- D \(\rightarrow\) II
This arrangement corresponds to option (B).