Charles, aged $63,$ was a manager at the Exotic Wood Corp. His supervisor, Dee, frequently made derogatory age$-$related comments about Charles to other workers. Dee encouraged Charles' co$-$workers to be uncooperative toward him and not talk to him as she believed that older people gossip a lot and reduce productivity. Charles filed a complaint under the Age Discrimination in Employment Act against Dee. In this case, Charles can make a prima facie case for $\_\_\_\_\_\_\_\_\_\_.$

Multiple Choice

quid pro quo

hostile environment

disparate impact discrimination

reverse discrimination