Which technique is the best way the Scrum Master can ensure that the Development Team...

The correct answer is A, because the best way the Scrum Master can ensure that the Development Team communicates effectively with the Product Owner is to monitor communications between them and facilitate direct collaboration. The Scrum Guide states that “the Scrum Master serves the Product Owner in several ways, including … facilitating Scrum events as requested or needed.” Therefore, the Scrum Master should help the Development Team and the Product Owner interact regularly and productively during the Sprint Planning, Daily Scrum, Sprint Review, and Sprint Retrospective events.