The Product Owner is responsible for ensuring that the most valuable functionality is produced first, at all times, by ordering and prioritizing the Product Backlog. The Product Owner also interacts with stakeholders to understand their needs and expectations, and to communicate the vision and progress of the product. The other options are not part of the Product Owner role according to Scrum, as they are either too prescriptive or too technical.

According to the Scrum Guide, the Sprint Retrospective is an opportunity for the Scrum Team to inspect itself and create a plan for improvements to be enacted during the next Sprint. The topics that are appropriate for discussion are those that relate to how the team does its work, such as team relations, Definition of Done, and processes, tools, communication, collaboration, quality, etc. The other options are not appropriate topics for discussion in a Sprint Retrospective, as they belong to other Scrum events (such as arranging the Sprint Backlog for the next Sprint in the Sprint Planning or evaluating the value of work in the Product Backlog in the Sprint Review).