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    Question

    In each of the questions given below, four words are given

    in bold. These four words may or may not be in their correct position. The sentence is then followed by options with the correct combination of words that should replace each other in order to make the sentence grammatically and contextually correct. Find the correct combination of words that replace each other. Recent studies have found protective (A)/ between herpes virus infections and an increased risk of raising (B)/ dementia, including Alzheimer’s disease, developing (C)/ the question of whether vaccination might have a associations (D)/ effect.
    A Both A-D & B-C Correct Answer Incorrect Answer
    B Only A-D Correct Answer Incorrect Answer
    C Only B-C Correct Answer Incorrect Answer
    D Only A-C Correct Answer Incorrect Answer
    E Both A-C & B-D Correct Answer Incorrect Answer

    Solution

    the correct swaps are:A ↔ D: "protective effect" and "found associations"

    B ↔ C: "risk of developing dementia" and "raising the question"

    Final corrected sentence:

    "Recent studies have found associations between herpes virus infections and an increased risk of developing dementia, including Alzheimer’s disease, raising the question of whether vaccination might have a protective effect."

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