Which best describes the Product Backlog?

According to the Scrum Guide, the Product Backlog is an ordered list of everything that is known to be needed in the product. It is allowed to grow and change as more is learned about the product and its customers. The other options are not accurate descriptions of the Product Backlog, as they are either too restrictive (such as providing just enough information or baselining to follow change management processes) or too comprehensive (such as containing all foreseeable tasks and requirements or enabling a complete project plan).