kindly, pls explain

10. Roads Co. is bidding for constructing 2 bridges per year around Sydney for the next 3 years. This project requires initial investment of $847,000 in specialized machinery. The machinery will be fully depreciated to zero book value using straight-line depreciation over the life of the project. The machinery can be sold at the end of the project for $415,000. You will also need $165,000 in net working capital which will be recouped at the end of the project. The fixed costs will be $528,000 a year and the variable costs will be $1,640,000 per bridge. Your required rate of return is 16 percent for this project and your tax rate is 24 percent. What is the minimal amount, rounded to the nearest $100, you should bid per bridge? A. $4,158,400 B. $4,489,500 C. $2,065,700 D. $2,780,600 E. $2,244,800