vonnie is a broker who represents a seller under a listing agreement. vonnie does not represent the buyer in the same transaction; the buyer is a customer, but vonnie failed to make clear that she represented only the seller. vonnie has also failed to obtain the buyer's consent to act as an intermediary, although she did obtain the written consent of the seller. what are the consequences of vonnie failing to disclose her representation of the seller? a) vonnie may have created undisclosed dual agency. b) vonnie is not liable if the buyer suffered economic damages.