What will be the output of the following C code?

#include <stdio.h>
void (*(f)())(int, float);
typedef void (*(*x)())(int, float);
void foo(int i, float f);
int main()
{
    x = f;
    x();
}
void (*(f)())(int, float)
{
    return foo;
}
void foo(int i, float f)
{
    printf("%d %f\n", i, f);
}

A. Compile time error

B. Undefined behaviour

C. 1 2.000000

D. Nothing

Answer: Option A