Concept:
Agricultural geography in India involves understanding the specific climatic requirements of crops and the regional patterns of their production and productivity (yield).
Step 1: Evaluating Statement A (Wheat).
This statement is factually incorrect for Wheat. The description "plenty of heat and plenty of rain" applies to Rice (Paddy). Wheat is a Rabi crop that requires a cool growing season and moderate rain/irrigation.
Step 2: Evaluating Statement B (Cotton).
Cotton is a tropical/sub-tropical crop. A very specific requirement for a healthy cotton harvest is a long growing season with at least 210 frost-free days and bright sunshine. Frost is detrimental to the cotton boll. Thus, (B) is correct.
Step 3: Evaluating Statements C and D (Production Records).
• Yield (C): While Uttar Pradesh is the largest producer of Sugarcane, Tamil Nadu (and sometimes Maharashtra) often reports the highest yield (productivity per hectare) due to the maritime influence and longer crushing season. (C) is correct.
• Groundnut (D): Gujarat is consistently the leading producer of groundnut in India, benefiting from the suitable sandy-loam soils and climate of the Saurashtra region. (D) is correct.
Step 4: Conclusion.
Statements B, C, and D are correct.