Roger Is a Customer Service Representative at FlyAway Airlines

Roger is a customer service representative at FlyAway Airlines.He confided in one of his co-workers that he tested positive for HIV,but the co-worker spread the news around the office.Soon,several of Roger's co-workers ostracized him and refused to work with him.He was also constantly subjected to verbal abuse by his co-workers.Roger reported these incidents to his supervisor,and his supervisor fired him.Which of the following holds true in this case?

A) Roger has a discrimination claim based on hostile work environment under the Americans with Disabilities Act because FlyAway took an adverse employment action by firing him.
B) Roger does not have a discrimination claim based on hostile work environment under the Americans with Disabilities Act because his disability is not outwardly evident.
C) Roger has a claim for hostile work environment harassment under the Americans with Disabilities Act because he did not request any accommodations from his employer.
D) Roger does not have a claim for hostile work environment harassment under the Americans with Disabilities Act because the act does not cover employees working for private employers.