Who creates a Product Backlog Item's estimate?

A. The Development Team after clarifying requirements with the Product Owner
B. The Product Owner with input from the Development Team
C. The most senior people in the organization, including architects and subject matter experts
D. The Scrum Master
E. The Development Team, alone

Correct Answer: A

After the requirements are clear the Development Team can estimate a Product backlog item. In Scrum this process is called Poker