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An Army Corps of Engineers project for improving navigation on the Ohio River will have an initial cost of $4,500,000 and annual maintenance of $120,000 per year. Benefits for barges and paddle wheel touring boats are estimated at $480,000 per year while the disbenefits are expected to be $100,000 per year. If the project is assumed to be permanent (i.e., infinite life), calculate the conventional B/C ratio to determine if it is economically justified at 5% per year. B/C = 0.90 B/C = 1.20 OBC B/C = 1.10 B/C = 1.31 B/C = 1.25