An alternative has the following cash flows: Benefits of $30,000 per year, Disbenefits of $14,000 per year, Initial cost of $300,000 and M&O costs of $10,000 per year. If the alternative has an infinite life and the interest rate is 10% per year, the B/C ratio is closest to:

Select one:

a.0.32

b.0.80

c.0.40

d.0.70