You are deciding to choose between three mutually exclusive projects. a. option1: project X will cost $5000 to install and $4000 a year to run and will last for three years. b. option 2: project Y will cost $6000 to install and $3700 a year to run and will last for four years. c. option 3: project Z will cost $10,000 to install and $500 a year to run and will last forever. Let the WACC = 0.06 Estimate the NPV of project X. Estimate the equivalent annuity cost of project X. Estimate the NPV of project Y. Estimate the equivalent annuity cost of project Y. Estimate the NPV of project Z. Estimate the equivalent annuity cost of project Z. Which option would you choose option 1, 2 or 3?