In a Career Fair, If You Do Not Hear the Name

In a career fair, if you do not hear the name of a company's representative correctly, what should you do?

A) Avoid mentioning his or her name in the conversation.
B) Politely ask the company representative to repeat his or her name.
C) Don't do anything. You will look unprofessional if you try to clarify the name.
D) Discreetly ask the candidates standing next to you if any of them have heard the name correctly.