Listing an answer last with Randomize answers turned on
Questions that contain multiple answers from which a respondent can choose often have the option "None of the above" or "I don't know" as the last option listed. If you enable the Randomize answers or Alphabetize answers settings, "None of the above" and "I don't know" options will not be listed last.
If you want an option to be listed last in a list of options place a ~ (tilda character) before the option value. For example, if you want the option "None of the above" listed last, enter the option as "~None of the above". See the example screens below.
The ~ character will not appear when respondents view the question.
Overview of the Edit Tab