（1）单选题
Given a queue{1,2,3,4,5}, where 1 is the front and 5 is the rear. What will be the queue changed to after executing the following operations:enqueue(8),dequeue(),dequeue(),enqueue(9),dequeue(),dequeue(),dequeue(),enqueue(10),
A 10,9,8
B 8,9,10
C 4,5,8,9,10
D 10,9,8,4,5
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