Tom Is the Project Manager for His Organization

Tom is the project manager for his organization. In his project he has recently finished the risk response planning. He tells his manager that he will now need to update the cost and schedule baselines. Why would the risk response planning cause Tom the need to update the cost and schedule baselines?

A) New or omitted work as part of a risk response can cause changes to the cost and/or schedule baseline.
B) Risk responses protect the time and investment of the project.
C) Baselines should not be updated, but refined through versions.
D) Risk responses may take time and money to implement.