Bathroom Etiquette

Bathroom Etiquette: You have just finished doing your business at a high scale restaurant. You wash your hands and are about to reach for a paper towel, when the bathroom attendant beats you to it.
Do you need to tip the attendant?
A. Yes.
B. Yes, if you use any of their goodies.
C. No, they are provided there as a service from the restaurant.
D. No, if you decline their towel and grab one of your own