A stem cell research project requires expensive specialized laboratory equipment For this purpose, three pieces of equipment and their associated cash flows (listed below) are under consideration One piece of equipment must be selected, and the laboratory's MARR is 15% per year. Solve this problem using, Excel. a. Use the PW method to rank-order the economic attractiveness of the three projects. b. Determine the selected project using Incremental Analysis PW on ATCF Using Tax of 40% Depreciation as follows For ALT-A Straight Lino SL- Classical Method For ALT-B MACRS -ADS Class live and recovery period 3 years For ALT-C MACRS -GDS Class live and recovery period 3 years