In your project, you have historical relationships about costs, and parameters for cost estimating are quantifiable and scalable. Your manager wants to use project characteristics in a mathematical model to predict project costs. But you believe that parametric estimating is the best solution. What is the best course of action for this situation? Question 18 options: a) Make an analysis for your managers proposal and create a case for why your solution is better. b) None of the provided options c) Ask for expert judgment from a subject matter expert in cost estimation d) Agree with your managers opinion