You are managing a six-month project and have held bi-weekly meetings with your project sponsors. After five-and-a-half months of work, the project is on schedule and budget. But the sponsors are not satisfied with the deliverables. This situation will delay the project completion by one month. What is the most important process that will prevent this situation? 

  A)Define Scope

  B)Risk monitoring and control

  C)Control Schedule

D)Scope change control