**Consider the function**

find {int x, int y}

{return {(x < y) ? 0 : ( x - y)};}

let a,b be two non-negative integers. The call find {a, find (a, b)} can be used to find the

Options are:

A. Maximum of a, b

B. Positive difference of a, b

C. sum of a, b

D. minimum of a, b

correct answer is:

D. minimum of a, b