Q. What will be the output of the following C++ code?

#include <iostream>
using namespace std;
void fun(int x, int y){
    x = 20;
    y = 10;
}
int main() {

    int x = 10;
    fun (x, x);
    cout << x;
    
    return 0;
}

• (A) 10
• (B) 20
• (C) 30
• (D) Compile time error