21. When a party to a contract makes a unilateral mistake, the contract: a. generally can be rescinded by the mistaken party. b. is void. can be rescinded by either party. d. generally cannot be rescinded by the mistaken party unless the contract is unconscionable or it is proven that the non-mistaken party knew of the error. c. 22. a. For statute of frauds purposes, an interest in land includes: a house. b. a real estate mortgage. an easement. d. All of the above. c. 23 . . a. Which of the following promises ordinarily must be in writing to be enforceable? Promises made as a part of a prenuptial agreement. b. The agreement to sell of a car for $1500. The promise by an executor of an estate to pay a debt of the decedent. d. All of the above. c. 24. a. Robert hired James, a CPA, to prepare his tax returns. James was too busy and delegated the work to Sara, also a CPA. This delegation is: enforceable, as Sara is also a CPA. b. enforceable, as there was no expectation James would do the work. not enforceable, as Robert hired James to perform personal services. d. not enforceable, as this violates public policy. c