The domain of the function that assign to each pair of integers the maximum of these two integers is ___________

The domain of the function that assign to each pair of integers the ma

1.	The domain of the function that assign to each pair of integers the maximum of these two integers is ___________
A.	N
B.	Z
C.	Z <sup>+ </sup>
D.	Z<sup>+ </sup> X Z<sup>+ </sup>
Answer» E.