Cpp Programming Quiz 39 – Which of the following statement is correct?

Question: Which of the following statement is correct?
[A]. Once a reference variable has been defined to refer to a particular variable it can refer
to any other variable.
[B]. A reference is indicated by using && operator.[C]. Once a reference variable has been defined to refer to a particular variable it cannot refer to any other variable.
[D]. A reference can be declared beforehand and initialized later.

Answer: Option C