Which one of the following is legal to declare and initialize a pointer to a double value? (Assume dPtr is a pointer variable and num is a variable that stores a double value 25.5)

Question

Which one of the following is legal to declare and initialize a pointer to a double value? (Assume dPtr is a pointer variable and num is a variable that stores a double value 25.5)
a. double & dPtr = 25.5;
b. double *dPtr = num;
C. double *dPtr = &num;
d. double & dPtr = &num;

GPT 3.5 · Answer

C. double *dPtr = &num;