Step 1: Understanding the Question:
• Arrange the soils of India in ascending order of areal extent.
Step 2: Detailed Explanation:
• Alluvial soils cover by far the largest area, followed by black soils.
• Arid and desert soils and laterite soils cover much smaller areas; as per the NTA final answer key the order from smallest to largest is Arid and desert (B), Laterite (C), Black (A), Alluvial (D).
Step 3: Final Answer:
The correct option is (D) B, C, A, D.