Tug Boats Inc. provides boats to customers eager to boat on the local river. Management has determined that there is one chance in a thousand of a customer being injured or killed. Settlement of resulting lawsuits has an average cost of $850,000. The Insurance under consideration has a mandatory $100,000 deductible. It covers the costs of lawsuits, unless there is evidence of criminal negligence. Based on cost-benefit analysis, what is the most that the business should pay for the insurance?

1)	$100
2)	$500
3)	$750
4)	$850