Which of the Following Is a Self-Referential Object

Multiple Choice

Which of the following is a self-referential object?

A) class SelfRefer {
Int* xPtr;
};
B) class selfRefer {
SelfRefer x;
};
C) class SelfRefer {
SelfRefer* xPtr;
};
D) class SelfRefer1 {
SelfRefer2 x;
};
Class SelfRefer2
{
SelfRefer1 x;
};