Under what circumstances should separate Product Backlogs be maintained?
A. There are several Product Owners for one product. Each Product Owner should have their own Product Backlog
B. There are multiple teams working on independent products. Each unique combination of team and product should have an independent Product Backlog
C. There are multiple product features being developed by the same team.
D. There are multiple teams working on the components of the same product. Each team should an independent Product Backlog