You are PM, you are updating WBS during define activities, which is often called?

The correct answer is A. Refinements.

Updating WBS process is also known as decomposition or progressive elaboration and should describe the major deliverables for the project. During this process, Work packages are broken into smaller, more manageable components called activities.

Activity list, Activity attributes, and Milestone list are needed for this process.

While planning process WBS is revisited multiple times to ensure that detailed plans contain the latest information known about the project is incorporated in WBS. This practice is called "Rolling Wave Planning".

In the given question the best answer would be "Refinements" - A

A. Refinements ------------------

Updating the activities in the major projects is important and the engineer who follows the course of work takes this very seriously

Thank you for the invitation

I agree the option D