A federal agency is considering expanding a national park by adding recreational facilities. The initial cost of the project will be $1.5 million, with an annual upkeep cost of $50,000. Public benefits have been valued at $300,000 per year, but disbenefits of $200,000 (initial cost) have also been recognized. The park is expected to be permanent. At an interest rate of 6% per year, the B/C ratio is closest to