Step 1: Understanding the Question:
This question tests knowledge of shade-tolerant crops suitable for agroforestry.
Step 2: Detailed Explanation:
Turmeric and ginger are shade-tolerant crops.
They can be grown as intercrops in agroforestry systems under tree canopies.
Greengram and blackgram (A): Not highly shade-tolerant.
Brinjal and tomato (B): Not highly shade-tolerant.
Soybean and groundnut (D): Not highly shade-tolerant.
Thus, the correct answer is turmeric and ginger.
Step 3: Final Answer:
Thus, turmeric and ginger are shade-tolerant intercrops, which corresponds to option (C).
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