Renzoni Incorporated, has invested in new pasta manufacturing equipment at a cost of $72,000. The equipment has an estimated useful life of eight years. Estimated annual sales and operating expenses related to the pasta equipment follow: Annual sales $ 132,000 Labor costs Depreciation of equipment Operating income Income taxes Net income (108,000) (9,000) $ 15,000 (6,000) $ 9,000 The estimated payback of the investment in the pasta equipment is: Multiple Choice 3.0 years. 4.0 years. 8.0 years. 6.0 years.