2. Modify the C program shown in Example 1 in Lecture Note 2 such that the new program will generate one parent process and three child processes (which all of them created by the parent process). The output of this program will show each child process PID and its parent process ID. For example, A child process with PID: 1001 (parent process PID: 1000). A child process with PID: 1002 (parent process PID: 1000). A child process with PID: 1003 (parent process PID: 1000). Because all of them have the same parent process, their parent process PID is the same, 2.1) Take a sereenshot of your program and put here. 2.2) Compile and run your program. Take a screenshot of your program's output and put here. Example 1: Parent and Child Processes