Which of the following directly utilize the WBS? (Select TWO).

A communication plan defines information flow and stakeholders but does not directly use the WBS hierarchy as its primary input for structure.

The Monte Carlo technique uses estimated data (derived from WBS) for simulation, but it does not directly utilize the WBS itself as a primary input for its calculations.

Activity estimation relies on the WBS to identify and define the individual work packages and activities for which effort, duration, and cost need to be estimated. Without the decomposed work, accurate estimation is not possible.

Variance analysis compares actual project performance to the baseline, which is an output informed by the WBS, but variance analysis itself is not a direct input or process of using the WBS structure.

Resource assignment directly uses the WBS to allocate specific human resources, equipment, and materials to the defined work packages and activities. This ensures that the right resources are available for each piece of work.