1. Answer the following questions related to process creation and management. (a) (5 points) How many "Hello" lines does this program print? Explain your answer clear sketching out the process tree. 1 void doit (void) { if (fork () == 0) { fork (); printf ("Hello "); return; return; int main (int argc, char **argv) { doit (); printf ("Hello "); exit (EXIT_SUCCESS)