Which of the Following Is TRUE

Which of the following is TRUE?

A) An advantage of scales is that a great deal of information can be secured from the respondent in a short period of time.
B) Item nonresponse is the group of respondents who refuse to participate in the survey being con-ducted.
C) Once a good set of questions has been developed,it is of little consequence as to the order they are asked on the questionnaire.
D) All of these are true.
E) None of these are true.