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Solution

To satisfy the conclusion: $ \text{Production ↑} \Rightarrow \text{Prices ↓} \Rightarrow \text{Poor relieved} $ Statement ii gives: $ \text{Production ↑} \Rightarrow \text{Prices ↓} $ Statement iii gives: $ \text{High prices hurt poor} \Rightarrow \text{Low prices relieve poor} $ Thus statements ii and iii together support the conclusion.