Hari Needs to Conduct a Survey Over Three Months Among

Hari needs to conduct a survey over three months among employees completing their probationary period. This survey needs to be undertaken to determine how company orientation and training processes can be improved. He has several closed questions prepared for the survey, but he does not know if the choices provided are adequate. He should

A) conduct a pretest with open questions to find commonly chosen categories.
B) conduct a pretest to ensure that the terms used mean different things to different people.
C) conduct the survey as it is and leave an "others" category for each question.
D) ensure that his multiple-choice questions are not mutually exclusive and exhaustive.
E) conduct a pretest with closed questions to find categories that matter to respondents.