Question: If Circle is a structure, what does the following statement do ? Circle * cir = nullptr; Group of answer choices It initializes a null

If Circle is a structure, what does the following statement do?
Circle *cir = nullptr;
Group of answer choices
It initializes a null pointer with the value of the Circle pointer.
The statement is illegal in C++.
It declares an empty structure variable named *cir.
None of these
It declares a structure pointer called cir initialized with a null pointer.

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