What will be the output of the following C code?

#include <stdio.h>
int main()
{
    int *((*x)())[2];
    x();
    printf("after x\n");
}
int *((*x)())[2]
{
    int **str;
    str = (int*)malloc(sizeof(int)* 2);
    return str;
}

A. Compile time error

B. Undefined behaviour

C. After x

D. None of the mentioned

Answer: Option A