Linda Agrees to Buy Missy's Greyhound Race Dog for $2,000

Linda agrees to buy Missy's Greyhound race dog for $2,000.Linda is to deliver the money and take possession of the dog the next morning.That night,running his best race ever,the dog runs away from Missy,never to be seen again.

A) Linda must give $2000 for the dog, but only if the dog was insured.
B) Linda must give $2000 for the dog, but only if Missy can find a replacement dog within a reasonable time.
C) Linda must give $2000 for the dog.
D) None of the above; the contract duties are discharged.