Part A: Review and analyze the price templates in Tables 15.1, 15.2 (TCO analysis) and 15.3 and 15.4 (Leasing Packages for virtual servers and block-based cloud storage devices) in your textbook. For each of these scenarios, analyze the rationale for these cost/pricing decisions as discussed in the Case Studies. Discuss whether you agree or disagree with the decisions for each case. What other approach might you examine for these scenarios and why?Part B:Define the following Service Quality metrics in detail and provide an example of each metric in business scenario of your own choice:AvailabilityReliabilityPerformanceScalabilityResilienceHow do each of these metrics factor in to guidelines and best practices for creating an SLA? Discuss tradeoffs in cost and optimal SLA metrics and provide an example scenario for this situation.