Allow a“Don't Know'or “Not Applicable' ☐Allow a“Don't Know”or“Not Applicable response to all questions,except to those in which you are certain that all respondents will have a clear answer.Allow a “Don't Know” or “Not Applicable” „Allow a “Don't Know” or “Not Applicable” response to all questions, except to those in which you are certain that all respondents will have a clear answer