Considering the computer system analysis, when the multiple layers are selected, the keyboard shortcut that merges them is "Ctrl+E for (Windows) or Command+E for (Macbook)."
Keyboard Shortcut combines keyboard keys to ensure software programs perform specific functions.
Keyboard Shortcuts can be made by a Computer manufacturer as part of the standard functionality of the operating system or application program or made explicitly by the user in a scripting language.
Keyboard Shortcut is different in both Windows and Macbook Operating systems.
Hence, in this case, it is concluded the correct answer is "Ctrl+E for (Window) / Command+E for (Macbook)."
Learn more about Keyboard shortcuts here: https://brainly.com/question/14447287
