Select the correct option to test your answer: A it illustrates the connection between the layers in communications protocols, such as the international standards organization open systems interconnection (iso osi) model,or the layers in user interface and windowing systems, such as the x window system B it often illustrates operating system layers, with the kernel at the core C all of the mentioned D none of the mentioned Correct Answer: Option D (none of the mentioned) Verified correct option for Computer Science Engineering (Cloud Computing).