By the way do you want to not display prompt if option is given ? 
An example:
given that a user type `yo backbone --requirejs`
no checked prompt `Use RequireJs` will be displayed.

My first idea was to simply display the prompt for all possible options (coffee, compass, requirejs) and display a *checked* prompt for any option set on CLI. The advantage is that user can still change his mind.

Another advantage : It will be easier for option logic, and will also fix this bug. 

If you want to keep the current behaviour, as to only prompt unset options,  no problem, I will fix it.