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    Question

    "Liveness analysis" in code optimization

    determines:
    A Which variables are currently in scope. Correct Answer Incorrect Answer
    B Which variables are used before being redefined after a particular point in the code. Correct Answer Incorrect Answer
    C Which code segments are reachable. Correct Answer Incorrect Answer
    D The execution frequency of different code paths. Correct Answer Incorrect Answer
    E Whether a variable's value is constant. Correct Answer Incorrect Answer

    Solution

    Which variables are used before being redefined after a particular point in the code.

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