Donna entered into an oral contract with Ava to purchase a house from Ava, with $500 per month payments for the next 10 years. Donna moved into the house, remodeled it, and did extensive repairs. At the end of 10 years, Ava refused to convey title to the house to Donna and produced evidence at the resulting trial that the fair market rental value for the house averaged $800 per month over the 10-year period. Which of the following is true according to the Statute of Frauds?