8.9 Busan Global is considering two alternative bridges to connect the city to an island. The costs associated with both bridges are shown below. The life of the bridges is considered permanent and MARR is 8 that both bridges have equivalent use but Bridge B is shorter than Bridge A with lower users travel cost but higher construction cost. Which percent. Assume alternative should be selected based on a conventional B/C analysis? Bridge B (in millions) Initial investment (first cost) Annual operating cost (AOC) Repair cost every 10 years User travel costs per year Estimated life, years Bridge A $50 $4 $2 $20 $80 $5 $25 $10