QUESTION 2 Match the benefit to the corresponding explanation. Change Design Learning Troubleshooting Standards A. Changes to layers have minimum impact on other layers. B. Different protocols operate on different layers which allow troubleshooting efforts to be more efficient. C. Establishing a standard and guideline for different vendors who are developing products to allow for interoperability. D. Each layer is defined separately allowing for designers to focus on one layer without the need to consider other layers. E. Complex topics are separated into different layers allowing for easier learning and understanding of the layers.