Q3 (6 points) This question tests your understanding of activation records as taught in class. (a) Assume that we want to apply Quicksort to sort the array A with 5 elements where the initial values of the array elements (from A[1] to A[5] ) are A : many times do we push an activation record (for quicksort or partition) onto the runtime stack before the completion of the algorithm? Note that Quicksort (A, 1, 5) is the first activation record pushed onto the runtime stack. (b) Assume that we want to apply mergesort to sort the array A with 5 elements where the initial values of the array elements (from A[1] to A[5] ) are A : How many times do we push an activation record (for mergesort or merge) onto the runtime stack before the completion of the algorithm? Note that mergesort (A, 1, 5) is the first activation record pushed onto the runtime stack