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    Question

    In the following question, three sentences are given, revolving around the same theme or idea. Decide which of the sentences are grammatically and meaningfully correct and mark the answer accordingly. 

    1. Spreading rock dust on half the farmland in the U.S.

    would cost $176pertonof carbon and $225 annual per American. 2. That’s pricey compared to clean energy solutions that directly cut emissions. 3. Solar farms, for instance, cost less than $40 per ton of emissions cut. 
    A Only 3 Correct Answer Incorrect Answer
    B Only 1 and 2 Correct Answer Incorrect Answer
    C Only 1 and 3 Correct Answer Incorrect Answer
    D Only 2 and 3 Correct Answer Incorrect Answer
    E All 1, 2 and 3 Correct Answer Incorrect Answer

    Solution

    Both 2 and 3 are correct, which makes D the right answer.  1 - replace the adjective ANNUAL with the adverb ANNUALLY as it is being used to modify the verb COST. 

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