1. (Ignore income taxes in this problem.) A company with $600,000 in operating assets is considering the purchase of a machine that costs $72,000 and that's expected to reduce operating costs by $18,000 each year. These reductions in cost occur evenly throughout the year. The payback period for this machine is closest to A. 8.3 B. 33.3 C. 4 D. 0.25 years.