Which of these is NOT a reason why is it helpful to "lock in$"$ a baselined project plan in MS Project?

a$.$ The baselined plan will not change throughout the project's duration.

b$.$ Once baselined, MS Project begins to track variance between baseline and actual values.

c$.$ The stakeholder$-$approved baseline values are key measures of project success.

d$.$ The baseline helps the project manager monitor and control the project.