Question: Assuming the declaration of int a = 0 ; , which of the following does not initialize ptr to null? Question 8 options: int

Assuming the declaration of "int a =0;", which of the following does not initialize ptr to null?
Question 8 options:
int *ptr = &a - &a;
int *ptr = &a;
All of the above.
int *ptr = a - a;

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