Step 1: Understanding the Concept:
This question tests knowledge of the area under cultivation of different crops in India.
Step 2: Detailed Explanation:
Approximate area under cultivation in India (2020-21 data):
- Oat (E): Very small area (mostly as fodder crop).
- Potato (C): About 2.2 million hectares.
- Cotton (B): About 12.5 million hectares.
- Wheat (A): About 30.5 million hectares.
- Rice (D): About 44.5 million hectares.
Increasing order: Oat < Potato < Cotton < Wheat < Rice.
Step 3: Final Answer:
Thus, the correct increasing order is E, C, B, A, D.
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