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How this function (7) works

A recursive function is defined as, int mystery (int k) {if (k == 1) return 0; else return (1 + mystery (k/2));} What value is returned by the call mystery (16)? 0 4 5 8 No value is returned because the call causes an infinite recursion. Answer ______ Suppose the following declarations are in effect. int a [] = {5, 15, 34, 54, 14, 2, 52, 72}; integral *p = &a[1], *q =^L &a[5]