Difficulty: Easy
Correct Answer: Only Assumption I is implicit
Explanation:
Reasoning:
Using “even after” carries a natural presupposition that the intervention (improved seeds) was expected to help. Hence I is necessary. Nothing is implied about the pre-intervention yield being adequate; the sentence contrasts “poor” with the expectation of improvement, not with prior adequacy. Therefore II is not required.
Final Answer:
Only Assumption I is implicit.
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