Nick Took the Train from Class to His Interview

Nick took the train from class to his interview.He arrived 15 minutes early, carrying coat, his backpack, pens, a pad, his portfolio and a folder with extra copies of his resume.What should he bring into the interview?

A) Everything because he should not inconvenience the receptionists by asking them to watch his belongings.
B) Everything because someone could steal anything he left in an outside office.
C) Only the pen, pad and the folder with extra copies of his resume because it looks cleaner.
D) His backpack with all this belongings because that is the most efficient way to carry them.