Marks Item Detailed Solutions Conclusion Overall 05 OS 5 Q.3: As an architectural engineer, you are approached to evaluate two competing design options for a tall building's smart faade system. You are asked to consider a 10-year study period and 8% per year. Option 1, new automated solar-powered shutter system, costs SR 250,000 initially, incurs annual expenses of SR 50,000 for the first four years and increases by a constant of SR 1,000 for the remaining years, and has a salvage value SR 37,000. Option 2, retrofit of the current faade system, costs SR 85,000 initially, incurs annual expenses of SR 95,000, and has additional support cost of SR SR 60,000 at the fifth year, and has no salvage value. (a) Draw the cash flow diagram for each option. (b) Compare the two options on the basis of their FW, assuming an interest rate of 8%. (c) Based on your analysis, which option should be considered why