Which of the Following Statements About the Editing Process Are

Which of the following statements about the editing process are TRUE?

A) When it's obvious a respondent hasn't taken the study seriously, his or her answers should be dropped.
B) All completed questionnaires should be kept.
C) All incomplete questionnaires should be dropped.
D) You can't change incorrect answers, because you have no way of knowing the respondent's original intent.
E) All partially complete questionnaires should be kept.