Study each of the following case. Answer the questions that follow with Yes or No.

Liang was about to purchase an air-conditioning unit for her apartment at a closeout sale at Center City Appliance. The salesperson assured her that the unit was large enough to cool the apartment she described. The price was right, but she was nervous when the salesperson said, “Remember that you’re taking this unit ‘as is.’” When she found that the unit would not cool the apartment, she returned to the store, where she claimed that the unit had been sold with an implied warranty of fitness for a particular purpose. The salesperson reminded her that he had said “as is.” 

a. Can the oral disclaimer void the implied warranty of fitness for a particular purpose?
b. Is there an implied warranty still in effect?
c. Is Liang reasonable in her demand?