Given the code below: int main() { pid_t pid; int value = 10; pid = fork(); if (pid == value += 8; printf("CHILD: value = %d ", value); /* Line A */ exit(0); } else {/* parent */ value + = 5; wait(NULL); printf("PARENT: value = %d ", value); /* Line B */ exit(0); } 0) { /* child */ } a) Explain what the fork() call does. Be specific. b) Which process runs first after the fork, the parent or the child? Explain why. b) What is printed at Line A? Explain why. c) What is printed at Line B? Explain why.