Response should be not more than 2 pages 4.1 The case study is an example of where a risk model will be most applicable to quantify the risks. (10 marks) This is due to the nature and magnitude of the decision to be taken. However, the risk model will only be useful it the model is fully integrated. Summarise the building block of risk quantification that should be integrated? 4.2 The case study mentions several variables that may affect the outcome of the Gautrain project (15 marks) signicantly. Therefore, it is essential that the decision makers understand what happens if any of the variables change. This is where sensitivity analysis is very useful. Using examples from the case study, summarise 3 benefits and 2 drawbacks of sensitivity analysis in this case? Tabulate your responses