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    Question

    ch data structure is used in Depth-First Search

    (DFS)?
    A Queue Correct Answer Incorrect Answer
    B Stack Correct Answer Incorrect Answer
    C Heap Correct Answer Incorrect Answer
    D Hash Table Correct Answer Incorrect Answer
    E Array Correct Answer Incorrect Answer

    Solution

    DFS uses a stack (explicit or via recursion) to explore nodes deeply before backtracking.

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