When making decisions about the cost risk of a project, it is important to: a. Only use quantitative analysis tools because qualitative methods are too biased for most decisions b. Look at the problem from as many viewpoints as possible to gain better understanding c. Avoid using expert judgment as part of the analysis because people's experience is generally different from the current problem at hand d. Spend as little time as possible on the analysis, because in the end risk assessment is all guesswork anyway