Christian and Anastasia enter into a contract in which Christian agrees to pay Anastasia to construct a game room in his house. Which of the following would not be a breach of that contract?

A) Anastasia completes half of the room and then refuses to complete the rest.

B) Anastasia completes the entire room except for installing the fancy door knobs on the door.

C) Anastasia completes the room three months over schedule.

D) Anastasia uses cheap tiles from Home Depot rather than the specialized tiles from Italy that were specified in the contract.