Where can Greg find the option for recently opened folders in the Finder Menu?

The option for recently opened folders can be found in the Go Menu of the Finder. This menu is designed to provide quick access to locations within the file system, including folders that have been accessed recently. By selecting the "Recent Folders" command within the Go Menu, users can easily navigate back to their recently accessed directories without having to manually browse through the entire file structure.

The other menus have different purposes: the Apple Menu primarily contains system-wide options and preferences, the View Menu is focused on how items are displayed within Finder windows, and the Dock Menu serves functions related to the applications and shortcuts in the Dock. Each of these serves its unique function, but they do not provide access to recently opened folders. Therefore, the Go Menu is the correct choice for this functionality.