Answer:
comments and annotations
document properties and personal information
invisible on-slide content
presentation notes
Explanation:
These are all aspects of the document that can be inspected by the document inspector. The document inspector is a tool that allows us to examine documents in order to remove or alter information. This is a useful tool to employ before finishing and distributing a document. Other aspects that the inspector can check in Powerpoint are embedded documents, data models, content apps and off-slide content.
