According to the PMBOK Guide, agile project management is an iterative and incremental approach that delivers value to stakeholders frequently and continuously throughout the project. The product owner is responsible for defining and prioritizing the product backlog, which is a list of features and requirements that deliver value to the customer. The project manager should facilitate sprint planning sessions with the product owner and the development team to select the most valuable and feasible items from the product backlog and define the minimum viable product (MVP), which is the smallest version of the product that can be released to validate the customer needs and assumptions. This way, the project manager can align the project activities with the product owner's interest in having features released during product development over having the product completed in one year. Designing metrics, promoting a productive environment, and creating a reward system are also important aspects of agile project management, but they are not directly related to the product owner's interest in this question. References:
* PMBOK Guide, 7th edition, pages 26-27, 31-32, 36-37, 40-41
* PMI-PBA Guide, 2nd edition, pages 25-26, 30-31, 35-36, 40-41