A Product Owner is accountable for maximizing the value of the product that is the result of the work of the Scrum Team. However, they can delegate some of their responsibilities to others, while still remaining accountable for the work. Two of the responsibilities that can be delegated to others are:

Attending the Sprint Retrospective. The Sprint Retrospective is an event where the Scrum Team inspects how the last Sprint went with regards to individuals, interactions, processes, tools, and their Definition of Done. The purpose of the Sprint Retrospective is to plan ways to improve quality and effectiveness. The Product Owner may attend the Sprint Retrospective as one of the Scrum Team members who has a stake in the outcome of the product development. However, they can also choose not to attend or delegate their attendance to someone else who can represent their interests and perspectives.

Attending the Sprint Review. The Sprint Review is an event where the Scrum Team and stakeholders inspect the Increment and adapt the Product Backlog if needed. The purpose of the Sprint Review is to elicit feedback and foster collaboration. The Product Owner is accountable for ensuring that key stakeholders attend the Sprint Review and that they understand what has been done and what can be done next. However, they can also delegate some of their tasks to others who can facilitate or present the Increment on their behalf.

Other options, such as ordering Product Backlog items or developing and communicating the Product Goal, are not responsibilities that can be delegated to others by the Product Owner. They are essential accountabilities that only the Product Owner can perform.