Which of the following is an exception to the statute-of-frauds requirement that sale-of-goods contracts be in writing? a) a contract involving goods that ar eworth at least $500 b) a contract involving the sale of land c) a contract for goods for which payment hs been made. d) a contract for a ervice fthat lasts for 5 years 3) a collateral promise to pay another's debt. e) a collateral promise to pay another's debt.