Lillian wants to buy Ruthie's house. She sends Ruthie a written offer that Ruthie signs and accepts. A few weeks after they close the sale and Lillian moves in, she notices a big stain on the carpet downstairs. Lillian had never been downstairs prior to entering into the contract. Can Lillian sue Ruthie for failing to disclose the stain? No, because the doctrine of caveat emptor applies Yes, because Ruthie had a duty to disclose the stain No, because there was no contract Yes, because the stain was a latent defect No, because the contract was in writing