Proposals are seller prepared documents that describe the seller's ability to provide requested services. Which of the following processes is used to elicit the proposal?

The use of quality circles:

A project is on its sixth iteration out of seven. Select the two points where the team is performing better than expected. (Choose two.)

A project team member complained to the project manager that they are not sure if they are working on the latest requirements document because it was emailed to them about one week ago. They mentioned that, in the past, they worked on a document for more than 20 hours only to find out later that another learn member had already updated that same document but did not send them the latest revisions.
What should the project manager do to avoid this situation in the future?

A project manager submits several requests to purchase required hardware and knows from previous experience that this kind of procurement usually results in disputes between the company and its suppliers. How can the project manager mitigate this risk in the request for proposal (RFP) with suppliers?