Jeff, a Real Estate Agent, Sells a Home to a Black

Jeff, a real estate agent, sells a home to a black couple in a predominately white community.After the sale, he goes to the neighbors and encourages them to sell their homes.He tells them that if they do not, their home values will go down substantially because of the area's imminent transition into a black neighborhood.Jeff is engaged in what illegal practice?

A) Steering.
B) Testing.
C) Blockbusting
D) NIMBY Not In My Backyard) .
E) None of these.