Which Approach Is Best If a Business Associate Refuses to Look

Which approach is best if a business associate refuses to look you in the eye while you and he are speaking?

A) Ask why he won't look you in the eye.
B) Realize that he's probably not telling you the truth.
C) Keep moving until you force him to look you in the eye.
D) Realize that he may have learned that constant eye contact is not appropriate in a business situation.