Operating systems in C

6. Draw a picture that illustrates all the processes and their (possibly shared) streams in the following situation. A process pl opens the file a.txt for input and it opens the file b.txt for output. Then process pl creates a pipe. Then pl creates a child process p2 with p2 inheriting a.txt, the pipe's input, and pl's stderr as its stdin, stdout and stderr. Then pl creates another child process p3 with p3 inheriting the pipe's output, b.txt and pl's stderr as its stdin, stdout and stderr Then pl closes its handles to a.txt and the pipe's output