A company is evaluating two different irrigation system options. An underground automatic irrigation system will cost $9.2 million to install and $80,000 pre-tax annually to operate. It will not have to be replaced for 20 years. An aboveground system will cost $6.8 million but $190,00 per year to operate. The aboveground equipment has an effective operating life of nine years. The firm leases its land from the city and both systems are considered leasehold improvements; as a result, straight-line capital cost allowance is used throughout, and neither system has any salvage value. Which method shoudl we select if we use a 13 percent discount rate The tax rate is 39 percent.