Q3. [25p] An independent cable operator is considering the three bandwith alternatives shown below (thousands $). Assume a life of 20 years and a MARR of 20% per year to determine which alternative is best using an incremental investment rate of return analysis. Bandwidth 44 Mbps 55 Mbps 88 Mbps First Cost Operating Cost Annual Income ($) (S) (S) -40,000 -2,000 4,000 -46,000 -1,000 5,000 -61,000 -500 8,000