Answer:
You should NOT call the interviewer at home.
Explanation:
Planning what you will wear is important, as you need to look professional to make a good first impression.
Practicing answering questions is important, as you need to ensure you are prepared.
Arranging transportation and getting directions is important, as you need to make sure you have a way of getting to the interview.
Calling the interviewer at home is NOT proper, as it is unprofessional.
