Correct Option (A)
The passage highlights that while climate change may offer some benefits like lengthened growing seasons and increased carbon dioxide for certain plants, it also presents significant challenges such as pests, droughts, and flooding. It explicitly states that suitable croplands for major commodities will shift, requiring farmers to adapt by planting new crops. The text further notes that agricultural practices, alongside political shifts and global demand, will influence future farm outcomes. Therefore, the inference that farmers who modernize their methods and diversify their fields will be in an advantageous position aligns directly with the passage's emphasis on adaptation and evolving agricultural strategies in response to changing environmental and economic conditions.
Incorrect Options:
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Option (B): The passage discusses the necessity for farmers to adapt by shifting crop types and locations. However, it does not provide information to conclude that this adaptation will inherently lead to an adverse effect on overall crop diversity. The focus is on changes in cultivation practices rather than a reduction in the variety of crops available or grown.
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Option (C): While the passage projects a shift in suitable croplands, it does not provide any basis to infer a great increase in the total area under cultivation or a subsequent increase in overall agricultural production. The passage also mentions negative impacts such as droughts and floods, which could potentially render some regions less suitable for farming.
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Option (D): The passage explicitly states, "Climate alone does not dictate yields; political Shifts, global demand, and agricultural practices will influence how farms fare in the future." This statement directly refutes the assertion that climate change is the most important factor, indicating that it is one of several significant determinants affecting the agricultural economy.