(d) (5 points) What will the following program print? \# include a=2; while (a 1 " ); a=a+2; break; case 2: printf ("case 2 " ); a=a1; break; case 3: printf ("case 3 " ); a=a+3; break ; default: printf ("default "); a=a+4; \} \} return 0 ; \}