What Is the Output of the Following Program?
#Include $\quad$

What is the output of the following program?
#include <iostream>
using namespace std;
void doSomething(int) ;
int main()
{
$\quad$ int x = 2;
$\quad$ cout << x << endl;
$\quad$ doSomething(x) ;
$\quad$ cout << x << endl;
$\quad$ return 0;
}
void doSomething(int num)
{
$\quad$ num = 0;
$\quad$ cout << num << endl;
}

A) 2
0
2
B) 2
2
2
C) 0
0
0
D) 2
0
0