Why does Scrum prevent Product Owners from changing Product Backlog items that are being worked on during the Sprint?

Why does Scrum prevent Product Owners from changing Product Backlog items that are being worked on during the Sprint?
A .  The development team cannot meet their Sprint commitment to complete work if requirements are changing
B .  A Sprint cycle is not enough time for senior management review and approve changes
C .  This forces Product Owners to focus on what is really important for the team to develop.
D .  The development team must be able to limit the Product Owner authority

View Answer

Answer: C