What will be the output of the following C code?

#include <stdio.h>
int foo(int, int);
#define foo(x, y) x / y + x
int main()
{
   int i = -6, j = 3;
   printf("%d ",foo(i + j, 3));
   #undef foo
   printf("%d\n",foo(i + j, 3));
}
int foo(int x, int y)
{
   return x / y + x;
}

A. -8 -4

B. Compile time error

C. -8 -8

D. Undefined behaviour

Answer: Option A