The administrator has an option to hide an entire question or hide or delete an option of the question, if it is not required in future surveys without disturbing the already published survey and its reporting.
There is no option to delete a question. You can disable the toggle "Active" as shown below to hide a question.
To view the hidden questions on the admin side, select the check box "Show inactive questions
OR, you can choose to delete an option (available only if none of the participants have selected that option), or hide an option (available when the option has been selected/used in a survey, so cannot be deleted), or you can add more options if required using the Add Option button highlighted in the image below:
NOTE - We recommend you read our articles on the impacts of changing a published survey on the data collected and the reporting information.
Contact our support team if you need any further assistance via chat or email firstname.lastname@example.org