Explanation:
I have attached the answer as an image. I can't upload the file as it requires a licensed product and I only used demo version. I can provide the file too if you can give me your vlsig file required to use full software. However, If you just copy along the images on your Visual Studio, you will easily create the files yourself. Answer is provided for both scenarios as part A and part B, one which stops after 1 iteration and the one which loops until 0 height is given.
C is going to be your answer
Answer: keeps confidential documents secure,
displays a GUI, allocates the computer's resources, and retrieves files
Explanation:
The operating system can be defined as the software installed in the system that provides the information and services to the users by controlling the hardware, software resources, and regulates the computer programs. It runs the applications and programs in the system, displays the graphic user interface for the services, stores, manipulates, and retrieves files. It prevents the unauthorized access to the data and programs by using passwords thus provides the security to the system and documents.