Yes, it is possible to remove survey response options and sub-options.
Within the Questions tab of the Survey Editor you can see all of your configured questions and answer options.
Click on the trash can symbol to the left of any survey option or sub-option to remove it:
Removing a survey answer option will also remove it's sub-options.
Individual sub-options can be removed by hovering over them and then selection the trash can icon to the left of the sub-option.
Remember to Save your survey for the changes to take effect.
Please note:
Your survey responses and stats will not automatically reflect the removal of answer options from your survey.
You may wish to consider starting a new survey from scratch if you'd like a cleaner set of results, or filtering your responses/stats using a date from filter to only show responses/stats from a certain point in time.
Need any help?
If you have any issues with adding or removing survey options, then please do get in touch.