Write a shell script. The shell script should ask you a multiple choice question, if result is correct it will print "Congratulation, correct answer" otherwise "Wrong answer, the correct answer is b". (You should use case construct and for each option you will echo the desired result). The output of the shell script should be as shown: What is the world best-selling album of all time? a) Dirty Dancing b) Thriller c) The Dark side of the Moon Show that your executable script is working to the instructor! i.e. use chmod command to make your script executable, then type the name of your script to execute.

An operating system (OS) is the software which manages hardware and resources, like CPU, storage and memory. The OS bridges the applications and hardware and makes the connections between all of your software and the hardware resources.