Telemarketing is cheaper than direct mail

If a broker presents an offer to purchase real property for the listed price from a ready, willing, and able black buyer, and the offer is refused by the seller because of the buyer's race, the broker may:

A: Sue the seller for his commission; B: Advise the black buyer of his right to complain to the United States Department of Housing and Urban Development; C: Warn the seller that his refusal is a violation of the Fair Housing Act of 1968; D: Do all of the above.

Linear programming is useful for allocating scarce resources among competing demands

Indicate whether the statement is true or false