You are choosing between two projects. The cash flows for the projects are given in the following table$($$ million$)$: $($see picture of table attached$).$ a$.$ What are the IRRs of the two$$ projects? $($Round to two decimal places$)$

b$.$ If your discount rate is $4\mathrm{.}5\%,$ what are the NPVs of the two$$ projects?

c$.$ Why do IRR and NPV rank the two projects$$ differently?