How to remove choices in Google Forms?
https://nathannagele.com/how-to-remove-choices-in-google-forms/
Go to Google Form in Chrome browser -> click Menu (3 dots) -> Add-ons -> install 'Choice Eliminator Lite' -> go back to the Form -> click the drop-down element -> click the Add-ons icon -> click 'Choice Eliminator Lite' -> click 'configure' -> tick 'Eliminate Choices'.
Done.
