Braelyn, your subject matter expert, is having difficulty estimating the work effort for a number of activities. In addition, depending on the software developer, there could be additional activities that are simply not known at this time. As the business analyst, how should you note this on the work plan?

a. Add a reserve for both items at the activity level, and update the work plan as more information becomes available.

b. Collaborate with your project manager and use a consistent approach across the project.

c. Add a contingency reserve for the known activities and a management reserve for those activities that are unknown at this time.

d.Use a management reserve at the activity level for estimating both the work effort and the unknown activities that are not known at this time, then update the work plan as more information becomes available.