answer every part please! thank you

You have just started your summer internship, and your boss asks you to review a recent analysis that was done to compare three alternative proposals to enhance the firm's manufacturing facility. You find that the prior analysis ranked the proposals according to their IRR, and recommended the highest IRR option, Proposal A. You are concerned and decide to redo the analysis using NPV to determine whether this recommendation was appropriate. But while you are confident the IRRs were computed correctly, it seems that some of the underlying data regarding the cash flows that were estimated for each proposal was not included in the report. For Proposal B, you cannot find information regarding the total initial investment that was required in Year 0 . And for Proposal C, you cannot find the data regarding additional salvage value that will be recovered in Year 3 . Here is the information you have (in \$ millions): (Click on the following icon 0 in order to copy its contents into a spreadsheet.) Suppose the appropriate cost of capital for each alternative is 10%. Using this information, determine the NPV of each proposal. Which project should the firm choose? Why is ranking the projects by their IRR not valid in this situation? (Round to two decimal places.) Fill in the missing values ( $ millions). (Round to two decimal places.) Suppose the appropriate cost of capital for each alternative is 10%. Using this information, determine the NPV of each proposal. The NPV for proposal A is $ million. (Round to two decimal places.) The NPV for proposal B is $ million. (Round to two decimal places.) The NPV for proposal C is $ million. (Round to two decimal places.) Which project should the firm choose? The firm should choose (Select from the drop-down menu.) Why is ranking the projects by their IRR not valid in this situation? (Select the best choice below.) Which project should the firm choose? The firm should choose (Select from the drop-down menu.) Why il ranking the projects by their IRR not valid in this situation? (Select the best choice below.) A. Ranking the projects by their IRR is not valid in this situation because the projects have different scales and different patterns of cash flows over time. B. Ranking the projects by their IRR is not valid in this situation because the projects have different discount rates and different patterns of cash flows over time. C. Ranking the projects by their IRR is not valid in this situation because the projects have different scales and different project lifecycles. D. Ranking the projects by their IRR is not valid in this situation because the projects have different NPVs and different patterns of cash flows over time