Question 1: You are managing a project in which complete scope is not known with certainty in the beginning; this project requires rolling wave planning approach to progressively elaborate the scope of the project with the passage of time as the project progresses. a) Identify the suitable type of contract that needs to be written in above situation? (100 words) b) Also identify the risks for both seller and buyer in the type of contract that you have chosen and how such risks need to be managed? (100 Words) c) Differentiate between Cost Plus Incentive Fee vs Cost Plus Award Fee Contract types (100 Words).