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    Question

    In the question below, a sentence is given, divided

    into parts which when rearranged will form a logical and coherent sentence. One of the parts does not belong to the sentence. Identify the part that does not belong to the sentence and rearrange the remaining parts to form a meaningful sentence. Choose the option that represents the correct arrangement and mark the options accordingly. In a generic sense, vaccination works by priming the immune system (A)/ immunity to polio, which efficiently blocks (B)/ person-to-person transmission of wild poliovirus (C)/ no researchers dared attempt a polio vaccine for 20 years (D)/ with an 'immunogen' that develops (E)/
    A ABCD Correct Answer Incorrect Answer
    B BDAC Correct Answer Incorrect Answer
    C BDAE Correct Answer Incorrect Answer
    D EBAC Correct Answer Incorrect Answer
    E AEBC Correct Answer Incorrect Answer

    Solution

    (e) is the right answer as AEBC is the correct sequence and part D is the odd part. B begins by establishing the subject of the sentence as the basis of vaccination- in a generic sense, vaccination works by priming the immune system then E continues by telling us what should be introduced to make vaccine work- with an 'immunogen'. B continues by telling us the immunogen develops immunity to the disease. C concludes by telling us how immunity against polio virus help us to prevent person-to-person transmission of wild poliovirus. D is the odd part as it talks about research done in the field of polio virus - no researchers dared attempt a polio vaccine for 20 years and has not been discussed in any other part, it fails to link itself coherently with any of the other parts of the sentence.

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