Which one of the following is not true about this program?

#include<stdio.h>
#include<signal.h>
 
void response (int);
void response (int signo)
{
    printf("%s\n",sys_siglist[signo]);
    signal(SIGSEGV,SIG_IGN);
}
int main()
{
    signal (SIGSEGV,response);
    char *str;
    *str = 10;        
    return 0;
}

A. countw B. wcount C. wc D. count p E. None of the above

A. dm B. rm C. delete D. erase E. None of the above

A. rdir B. remove C. rd D. rmdir E. None of the above

A. x B. y C. a D. z E. None of the above