Niwot co. sells products and service plans both separately and bundled together. willy loman, a niwot co. salesman, sold a widgetron in year 5 for $1,000, its normal price, and told the customer he’d "throw in the 3-year service plan for free," which the company normally sells for an additional $150. the product shipped, the customer paid, and $1,000 in revenue was recognized in year 5. is this correct? why or why not? a. this is incorrect because the service revenue must be treated as a separate performance obligation, allocated a portion of the $1,000 sales price, and have revenue for it recognized over the three years of the service plan. b. this is correct because the understanding between the seller and customer was that the product price was $1,000 and the service plan was free, which is in accordance with the principle of faithful representation. c. this is correct because the product shipped and the customer paid. d. this is incorrect because services must be rendered before any revenue can be recognized.