In , the terminating conditions are if (sum == sel) // select enough items printarray (arr, num); return; if (ind > = num) // end of array, no more item to select return; it calls the same function twice: // select this element arr[ind] = 1; (arr, ind + 1, num, sel, sum + 1); // do not select this element arr[ind] = 0; (arr, ind + 1, num, sel, sum); if the program replaces ind + 1 by ind + 2, which statement is correct? ob, d, f (even letters) will not be selected o a is always selected the program will have segmentation fault. cand cannot appear at the same time o a, c, e (odd letters) will not be selected the program will not end.