Question: Given the declarations: int n; int& r = n; What does the following statement do? r = 3 * r; A. It triples the contents

Given the declarations:

int n;

int& r = n;

What does the following statement do?

r = 3 * r;

A. It triples the contents of r.

B. It triples the contents of the variable that n points to.

C. It triples the contents of n.

D. It triples the contents of both r and n.

E. Nothing - it results in a compile-time error.

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