Which of the following are those primary factors?

While assisting the Product Owner in developing a Prioritized Product Backlog, the Scrum Master must consider the primary factors on which the Prioritized Product Backlog is based-on.

Which of the following are those primary factors?

A) Value

B) Dependencies

C) Risk

D) Deliverables
A . A, В, and С
B . A
C . A, C, and D
D . С

Answer: A

Explanation:

The Prioritized Product Backlog contains a prioritized list of business and project requirements written in the form of Epic(s), which are high level User Stories. The Prioritized Product Backlog is based on three primary factors: value, risk or uncertainty, and dependencies. It is also referred to as the Risk Adjusted Product Backlog since it includes identified and assessed risks related to the project.

Reference: http://blog.scrumstudy.com/prioritized-product-backlog-the-backbone-of-a-scrum-project/