Drag the characteristics of the stage on the left to the correct Tuckman Ladder stage on the right

Prototype development may be used as a tool for which of the following risk response strategies?

Which of the following statements are FALSE regarding rolling wave plan?

A project manager developed the scope management plan for a new line of adaptive clothing. The designs and materials were approved when the prototypes were delivered they were less durable than expected.
What should the project manager have done to avoid this?

The following chart contains information about the tasks in a project.

Based on the chart, what is the schedule performance index (5PI) for Task 4?