Suppose you are given an implementation of a queue of integers. The operations that can be performed on the queue are: i.isEmpty 0 - returns true if the queue is empty, false otherwise. ii. deque () - deletes the element at the front of the queue and returns its value. iii. enqueue (i) - inserts the integer i at the Back of the queue. Consider the following function: void f (Aqueue g) { inti; if (!q isEmpty() { i = (int)q.dequeue(: f(q); q.enqueue(i); } } What operation is performed by the above function f? Select one