When There Is a Designated Person to Assist a Guest

When there is a designated person to assist a guest with a food allergy, what is that person's job?

A) To take the guest's order.
B) To add garnishes before serving the order.
C) To take the guest's order, communicate it to the chef, and take the correct plate to the right guest without any cross-contact.
D) To take the guest's order, cook the order; add appropriate garnishes, sides, and sauces; and take the correct plate to the right guest without any cross-contact.