If a queue contained the entries B,C,D (from head to tail),what would be the contents of the queue (again from head to tail)after one entry was removed and the entry A was inserted?

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The Answer of If a queue contained the entries B,C,D (from head to tail),what would be the contents of the queue (again from head to tail)after one entry was removed and the entry A was inserted?

If a Queue Contained the Entries B,C,D (From Head to Tail),what