References - Programming

Q1:

What will be the output of the following program?
#include<iostream.h> 
class AptitudeTest
{
    public:
    AptitudeTest(int &x, int &y)
    {
        x++;
        y++;
    } 
};
int main()
{
    int a = 10, b = 20;
    AptitudeTest objBT(a, b); 
    cout<< a << ' ' << b; 
    return 0; 
}

A 10 20

B 11 21

C Garbage Garbage

D It will result in a compile time error.

ANS:A - 10 20

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