What will happen if I compile and run the following code?

int $*$n;

scanf$("\%$d$",$ n$)$;

Select $*$all$*$ that could occur

What will happen if I compile and run the following code?

int $*$n;

scanf$("\%$d$",$ n$)$;

Select $*$all$*$ that could occur

n contains a memory address that the program does not have access to and the program seg faults

n contains a memory address that the program does have access to and the value stored at that address is changed to the number scanned in$.$

the $-$Wall option will prevent the program from compiling since n is not initialised

The $-$Wall option will warn that the variable n is not initialised.