In a "Modified" Callback,the Interviewer

Multiple Choice

In a "modified" callback,the interviewer

A) interviews whoever is at home after the fourth callback fails to get the designated respondent.
B) only asks the five most important questions on the survey.
C) only attempts three callbacks.
D) only attempts callbacks on a subsample of the group of not-at-homes.
E) leaves a self-administered questionnaire for the designated respondent.