8. Which of the following will NOT be enforced by a court? a. An oral agreement to buy a 5-acre tract of swampland for $450 b. an oral agreement to lease a refrigerator for an 11-month term for $800. c. an oral agreement to buy a used refrigerator for $450. d. a written agreement between a landlord and a tenant's parent whereby the parent agrees to pay any rent that the student refuses to pay