Mail Questionnaires Should Not Be Used in Which Circumstances

Multiple Choice

Mail questionnaires should not be used in which circumstances?

A) The questions allow respondents to answer quickly and easily.
B) The target audience is homogeneous.
C) The researcher has one week to collect and analyze all data.
D) The sample consists of people with similar interests and socioeconomic backgrounds.
E) The questionnaire does not require complex responses.