What is the output of this program?#include using namespace

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What is the output of this program?

#include 
    using namespace std;
    int main()
    {
        int num = 11;
        int & numref = num;
        num++;
        cout << "The value of num is " << numref;
        return 0;
    }

1. 12
2. 11
3. Garbage value
4. Compilation Error
5. Runtime Error

Correct Option: A

The value is declared and it isincrementedrement, so it’s value is 11.