What does the following C program print [4 points] and why [7 points]? Note that emphasis of this question is on your understanding of the signal functionality. State your assumptions where necessary. pid_t pid; void h1(int sig) { } printf("eagle"); kill(pid, SIGUSR2); void h2(int sig) { } printf("sparrow"); exit(0); main() { signal(SIGUSR2, h1); if ((pid fork()) == 0) { signal(SIGUSR2, h2); } kill(getppid(), SIGUSR2); while(1) {}; else { pid_t p; int status; if ((p = wait(&status)) > 0) { printf("pigeon"); } } }