(10 points) Consider the following code segments, what is the output? Please elaborate. int value = 2; if (!fork()) { value ++; printf("1: value = $d ", value); ) else { wait (NULL); if(!fork()) { value ++; printf("2: value = %d ", value); 1 else { wait (NULL); value ++; printf("3: value = %d ", value); fflush(stdout); exit(0); } fflush(stdout)