Output of following C++ program?#includeusing namespace std;int main(){int x = 10;int& ref = x;ref = 20;cout

Output of following C++ program?#includeusing namespace std;int main()

1.	Output of following C++ program?#includeusing namespace std;int main(){int x = 10;int& ref = x;ref = 20;cout
A.	x = 20; ref = 30
B.	x = 20; ref = 20
C.	x = 10; ref = 30
D.	x = 30; ref = 30
Answer» B. x = 20; ref = 20

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Output of following C++ program?#includeusing namespace std;int main(){int x = 10;int& ref = x;ref = 20;cout

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