Yes, it is possible to remove survey response options and sub-options.
Select the Survey Builder view from the main menu, scroll down to the Options section where you can see all of your configured survey options.
Click on the minus symbol to the left of any survey option or sub-option to remove it:
You will then need to click on the Save button at the bottom of the Survey Builder screen? If you do not click on the Save button, then your changes to the survey options will not be saved.
If you have any issues with adding or removing survey options, then please do get in touch.