According to the Text,which General Advice for Dress Is Appropriate

According to the text,which general advice for dress is appropriate?

A) Always dress casually, so you don't intimidate your buyers.
B) Always dress in expensive suits, so you give the impression of success.
C) Dress doesn't really matter anymore so don't worry about it.
D) It is best to rely on your company's dress code and use your common sense.
E) None of these choices are correct