Multiple Choice
The numbers 3, 2, 5, 7 are enqueued in a queue in that order, then three numbers are dequeued, and finally 3, 7, 9, 4 are enqueued in that order. What is the first number in the queue the next number to be dequeued) ?
A) 3
B) 7
C) 9
D) 4
Correct Answer:
Verified
Correct Answer:
Verified
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