Which one of these projects will provide the most shareholder value to the company and why?

project a -

NPV $36,121,599

IRR 72.89%

Payback Period 1.43

PI 4.61

Project b -

NPV $20,616,672

IRR 86.34%

Payback Period 1.20

PI 3.58

Project c

NPV $33,470.904

IRR 90.36%

Payback period 1.37

PI 4.84