A broker is offering a $$100$ gift certificate at a jewelry store to the broker during a specified time period. According to the New Jersey Real Estate License Law, such a promotion is prohibited because it:

A$.$ discriminates against sellers who do not list with the broker during the specified time period

B$.$ makes the receipt of the free offering contingent upon sellers listing their properties with the broker

C$.$ offers compensation for brokerage activity to unlicensed persons

D$.$ discriminates against sellers whose religion prohibits the waring of Jewlery