Let a, b be two non-negative integers. Which of the following calls, finds the positive difference of a and b ?

Let a, b be two non-negative integers. Which of the following calls, f

1.	Let a, b be two non-negative integers. Which of the following calls, finds the positive difference of a and b ?
A.	find(a, b) + find (b, a)
B.	find (a, find(a, b))
C.	a + find (a, b)
D.	b + find(a, b)
Answer» B. find (a, find(a, b))