Explain why a business case should take into account alternative scenarios for the important variables. (10) 2. Discuss issues that are not mentioned in the case but should be considered before the projects gets the go-ahead. (10) 3. What purpose do sensitivity analysis serve in project selection? Discuss within the context of PCs business case. (10) 4. Once top management has approved the Proposed Cement Factory project, and it has been admitted to the project portfolio, how is it monitored thereafter? Under what circumstances might it be cancelled? (10) 5. a. Do you think the team proposing the cement factory in the case should have included in the business case, bubble charts for risk versus reward illustrations in order to convince the PMO Director, his team and top management? Motivate. (5) b. How is PC CEMENTs portfolio of projects at any given time similar to and different from its own financial portfolio? (10)