So I found this question:
Juan is a product owner for a scrum team. He decides each sprint what items will go into the sprint backlog during sprint planning. He is growing increasingly frustrated with the development team not able to complete the task items he has chosen for the sprint. What should Juan do to help the development team reach the sprint goal? *
a Juan should work to find more competent developers able to deliver what he decides for each sprint
b Juan should work with the scrum master to find a resolution to this issue