please use C.

1. The program is incomplete. Implement isEven and isOdd. They only need to work for natural numbers (0, 1, 2, ). Requirements on these functions isEven must return 1 if the argument is even and 0 otherwise isOdd must return 1 if the argument is odd and 0 otherwise isEven and isOdd must be mutually recursive. That means that the implementation of isEven must call isOdd and the implementation of isOdd must call isEven.

kint main() int end = 10; for (int i=0; i