Problem 1 Write a C program in Linux that creates one child process, your program should do the following: Part 1: -The parent process creates a child process and the child process will output the time of the day and its own PID every second. -The parent process waits for 5 seconds. -The parent process will kill the child process after 5 seconds and prints Child killed.. Then the parent terminates. Part II: -The parent process creates 4 child processes and each child process will output the time of the day and its own PID every second. -The parent process waits for 5 seconds. -The parent process will kill the child processes after 5 seconds and prints Child killed.. Then the parent terminates. You may need to use sleep(), gettimeofday(), kill() and fork() system calls