a building owner is evaluating the following four alternatives for leasing space in an office building for the next five years.( in excel format) as part of the lease option evaluation, calculate the effective rent to the owner (after expenses) for each lease alternative using 9% discount rate. net lease with steps: rent will be $15 per square foot the first year and will increase by 1.50 per square foot each year until the end of the lease. All operating expenses will be paid by the tenant. Net lease with Consumer Price index adjustments: rent will be $16 per square foot fornthe first year. After the first year, the rent will be increased by the amount of any increase in CPI. The CPI is expected to increase 3% per year. Gross lease: Rent will be $30 per square foot each year with the lessor response will for payment of all operating expenses. Expenses are estimated to be $9 dollars during the first year in decreased by 1 dollar per year thereafter. Gross lease with expense stop and CPI adjustment: Rent will be $22 the first year and increased by the full amount of any change in the CPI after the first year with the expense stop at $9 per square foot. The CPI and operating expenses are assumed to change by the same amount as outlined above. How would you rank the the four lease options in terms of risk to the property owner from highest risk to lowest risk.