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Suppose an initially empty queue Q has performed a total of 32 enqueue operations, 10 first (or peek) operations, and 15 dequeue operations, 6 of

Suppose an initially empty queue Q has performed a total of 32 enqueue operations, 10 first (or peek) operations, and 15 dequeue operations, 6 of which returned null to indicate an empty queue. What is the current size of Q?

A) 23 B) 27 C) 25 D) 22

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