Which of the following are true about the Product Owner?

The Product Owner is one person, not a committee or a team of people. The Product Owner is accountable for maximizing the value of the product resulting from the work of the Scrum Team. The Product Owner is responsible for managing and refining the Product Backlog, collaborating with the stakeholders and the Developers, and ordering the items in a way that best achieves goals and missions. The Product Owner represents the interests of everyone with a stake in the product and ensures that the Scrum Team works on the right things at the right time.

Having multiple Product Owners for one product would create conflicts, overlaps, gaps, and inefficiencies. It would also make it harder to maintain a clear and consistent product vision, strategy, roadmap, and backlog. Therefore, the Scrum Team can not have multiple Product Owners.

The Product Owner is accountable for ordering the Product Backlog. The Product Backlog is an ordered list of everything that is known to be needed in the product. It is the single source of truth for the Scrum Team and the stakeholders. It contains all the requirements, features, functions, enhancements, fixes, and anything else that can deliver value to the customers and users of the product. The Product Owner orders the items in the Product Backlog based on factors such as value, risk, priority, dependency, feedback, or market conditions.

References:

Scrum Guide: https://www.scrumguides.org/scrum-guide.html

Product Owner: https://www.scrum.org/resources/what-is-a-product-owner

Product Backlog: https://www.scrum.org/resources/what-is-a-product-backlog