None of the options given are accurate descriptions of what an effective Product Owner must do. According to the PSPO II resources, an effective Product Owner must12345:
Develop and communicate a clear and compelling Product Goal that aligns with the organization's vision and strategy.
Manage the Product Backlog by refining, ordering, and prioritizing items that deliver value to customers and users.
Collaborate with stakeholders and the Scrum Team to understand their needs, expectations, and feedback.
Empower the Scrum Team to make decisions and self-organize around the Sprint Goal and the Product Backlog items.
Experiment and validate assumptions using empirical evidence and data.
Optimize the value of the product and the work of the Scrum Team.
Continuously inspect and adapt the product and the process based on the outcomes and feedback. Reference:
1: The Scrum Guide
2: Product Owner Learning Path
3: Product Owner Competencies
4: Evidence-Based Management
5: Product Strategy