What is the correct from the given choices about the following code?

void main$()$

$\{$

int num $=0$;

do

$\{$

$--$num;

printf $("\%$d$",$ num$)$;

num $++$ ;

$\}$

while $($num $0)$;

$\}$

Select one:

a$.$ A run time error will be reported.

b$.$ The program will not enter to the loop.

c$.$ There will be compilation error reported.

d$.$ The program will run many times infinitely.