(c) (d) What is the screen output of the following fragment of C code? int stars 7, star; while (stars > 0) { star = 1; while (star < stars) { printf ("-*"); star++; } printf(" "); stars--; } What is the screen output of the following fragment of C code? char str[]="abcdefghijklmnopqrstuvwxyz"; printf("%c ", *(str+5));