Q4 (15 points). There are two options arrived at by an engineering team conducting a feasibility study and engineering design to meet water treatment requirements for the next 30 years in the city of RAK. One of the two options considered was to upgrade an existing water treatment plant and the other option was to build a new plant in a new location. The cash flow diagram for the two options are shown below. In both options, the facilities will last for 30 years. At a compound interest rate 6% per year, answer the following questions: (a) If only one of the two options (either 1 or option 2) can be selected, showing the calculations how you arrived at your answer, which option should be selected and why? (b) If the two options are independent, which one would you select and why? (c) In which of the two scenarios above [ (a) and/or (b) ] would you consider the No Action Option? Why and how