Charles, a real estate developer, and Mabel enter into an agreement for the sale of certain land that Mabel inherited from her father. The land is undeveloped but zoned for residential development. Settlement on the sale is scheduled for June 1. Mabel, however, has been unable to secure clear title to the land because of a dispute with the other heirs to her father's estate, and does not appear for the settlement. After Charles' attorney sends several letters to Mabel concerning the sale to which she does not respond, Charles files a lawsuit against Mabel for breach of contract. Which, if any, of the following are remedies that Charles may obtain against Mabel for failing to perform her obligations under the agreement?