Mary hires Peter&Paul Construction to build a $2 million house. Mary has specific requirements. One is that the windows must be tinted. When the house is finished, everything is exactly as Mary required except the windows are not tinted. Peter&Paul Construction's performance is Select one: O a. Substantial b. An unjust enrichment. c. A material breach. d. A quasi contract Walter enters into a contract with CVS to purchase 25 boxes of antihistamine for his science project. Two days before delivery, CVS informs Walter that it is unable to supply the drugs. Walter should on Select one: a. Mitigate his damages by manufacturing the drugs himself. b. Give all his students As for the semester c. Wait until he loses his job then sue for damages. d. Mitigate his damages by purchasing the drugs elsewhere