A server is asked by a guest whether a dish contains peanuts. If the server is not sure, the best action is to:

解析

Staff must give a guest accurate allergen information, so a server who is unsure has to check with the kitchen or the manager and verify every ingredient, including sauces, oils, and marinades, before answering. Reassuring the guest that it is probably fine is a guess presented as fact. The appearance of a dish and the menu wording do not reveal peanut oil, peanut flour, or a shared fryer. Removing the visible peanuts leaves the peanut protein already in the food and any cross-contact from shared equipment, which is enough to trigger anaphylaxis.