Question: You have been working in the Essentials workspace and have changed the arrangement of panels, closing some that were open by default and opening others from the Window menu. How can you get back to the default arrangement of panels?

1. Switch to any other workspace, and then switch back to Essentials.
2. Quit Illustrator, press and hold Command+Shift+Option (Mac) or Ctrl+Shift+Alt (Windows), and relaunch Illustrator.
3. Choose Reset Essentials from the Workspace menu or the workspace switcher.
4. Quit and relaunch Illustrator.

Answer: The correct answer of the above question is Option C:Choose Reset Essentials from the Workspace menu or the workspace switcher.