The correct answer is retrospectives. Retrospectives follow these five steps (setting the stage, data gathering, insight-generating, what to do, closing) to provide valuable lessons learned from each subsequent iteration. To improve the
next iteration’s process, the team can take roadblocks and problems encountered in the iteration, along with their resolutions, and act upon them. The other responses are incorrect because the five steps are not applicable to pre-mortems,
value stream mapping, or feedback.