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Question: 1 / 565

How are references initialized in C++?

They can be initialized at any time

They must be initialized to NULL

They must be initialized when created

References in C++ must be initialized when they are created. Unlike pointers, which can be initialized at any time and can point to NULL, references must have a valid object to refer to when they are created. If a reference is not initialized, it will result in a compile-time error. Option D is incorrect because references must always be initialized, even if it is to NULL. Option A is also incorrect because references cannot be initialized after they are created. Option B is partially correct in that references must be initialized, but it is not necessary for them to be initialized to NULL.

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They don't need to be initialized

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