What's the best way to respond when a customer asks a question about a product and you don't know the answer?

A$.$ Admit that you don't know the answer and take the customer to a coworker or supervisor who can help

B$.$ Give your best$-$guess answer and let the customer figure it out from there.

C$.$ Suggest that the customer consider an alternate product that you are more familiar with, so you can better answer the customer's questions Look for information on the product's packaging or on relevant signs