The City of Omniville has two options for a viaduct One is a permanent cement canal and the other a cast iron ICE) pipe. If details for the options are as shown, at what rate of interest should the city:r be indifferent to either choice? (Hint: the EUAC for the 2 projects should be made the same by changing the rate.) Cement Canal Cl PIPE Initial cost ($5,000,000) ($4,000,000) Life Perpetual 25 years Annual maintenance cost $550,000 $700,000 Salvage $0 $560,000 Initial Rate 1 1.0% p. VA 0 6.9% O 10.6696 0 16.3196 0 35.04%