Consider the following method:

For each of the following calls, indicate the value that is returned:

a. mystery6(7, 1)

b. mystery6(4, 2)

c. mystery6(4, 3)

d. mystery6(5, 3)

e. mystery6(5, 4)

public static int mystery6 (int n, int k) { if (k == 0 || k == n) { return 1; } else if (k > n) { return 0; } else { return mystery6 (n - 1, k - 1) + mystery6 (n 1, k);