Which of the Following Is True of Data Editing

Which of the following is True of data editing?

A) Before being validated, data must be edited for mistakes.
B) Editing determines whether a survey's interviews or observations were conducted correctly and are free of fraud or bias.
C) Editing involves checking data for mistakes made by the interviewer but not by the respondent.
D) In order to speed through the data collection process, an interviewer may edit the data collection process.
E) As part of the editing process, the researcher will check to make sure all respondents were asked the proper questions.