You are trying to select between two labeling machines. Machine A has an initial cost of $15,000 and a useful life of 6 years. Its annual benefit is $8000, the annual O\&M cost is $1500, and the salvage value is $2500. Machine B has an initial cost of $25,000 and a useful life of 10 years. Its annual benefit is $13,000, the annual O\&M cost is $750, and the salvage value is $5000. At an interest rate of 5%, which labeling machine should you select? Use annual cash flow analysis