Sam orally agreed to sell Ramie some land for $500,000. Ramie paid Sam the $500,000; Sam gave Ramie the deed to the land. Ramie took possession of the land and began building a cabin on it. One month later, Sam tried to retake possession of the land by arguing that the contract for the sale was invalid because it was oral, not written. Sam sued Ramie to invalidate the contract and retake the land. The court will likely conclude that Sam will: On Tuesday, Sam offered to sell his CD collection to Sandy for $100. Sandy replied, "I'm interested. I'll think it over and let you know Thursday whether I want to buy the CDs." On Wednesday, Sam agreed to sell the CDs to Jason, and Jason immediately gave Sam a letter that stated: "Sam, I will buy your CD collection for $100. As we agreed, I will pay you on Friday when I pick up the CDs. Yours truly, Jason." Upon Sam's receipt of this letter on Wednesday, what best describes Sam's contract agreements