With regard to the ethical and legal constraints on activities of a Florida real estate broker, which of these is an INCORRECT statement?

a. information that a broker learns about a principal-client should be kept confidential

b. a broker should withhold facts that materially affect the value of the property and are not readily observable to the buyer.

c. if employed by his client-principal to sell, the broker should try to get the highest possible price.

d. a broker should submit any and all offers received on a listing.