The production department is proposing the purchase of an automatic insertion machine. It has identified three machines and has asked the accountant to analyze them to determine the best cash payback, which machine has the best payback period? Machine A Machine Machinec Annual cash flow $40,000 $50,000 $75,000 Initial cost 300,000 250,000 500,000 O Machine Ob Machine De Mai Od. They all three have the waterwylock period