Pilgrim Industries scheduled its annual sales meeting at Celestial City Resort from January 5-10. In addition to meeting and hotel rooms, the resort was to provide an ice-skating pond for the Pilgrim's annual employee hockey game. In the weeks before the meeting, the resort is hit with its worst heat wave on record. Although hotel and meeting rooms are available, there is no possibility of ice skating at the site. If a court finds that the one of Pilgrim's principal purposes in the agreement was the inclusion of an ice-skating pond, the Pilgrim-Celestial contract could be discharged via the doctrine of:

In which of the following games is it clearly the case that the cooperative outcome of the game is good for the two players and bad for society? a. two oil companies own adjacent oil fields over a common pool of oil, and each company decides whether to drill one well or two wells. b. two airlines dominate air travel between city a and city b, and each airline decides whether to charge a "high" airfare or a "low" airfare on flights between those two cities. c. two superpowers decide whether to build new weapons or to disarm. d. in all of the above cases, the cooperative outcome of the game is good for the two players and bad for society