Which of the Following Is Consistent with Grice's Relevance Principle

Multiple Choice

Which of the following is consistent with Grice's relevance principle?

A) Respondents voluntarily answer "don't know" if this option is not explicitly offered.
B) Respondents see the numerical scale values of a question as pertinent to the interpretation of the question.
C) Respondents use the option "Other_____(please explain) " when the listed alternatives do not match their true feelings.
D) Respondents respond differently to a general question when it is preceded by a specific question than when the general question is asked first.