How does Google determine which content is suitable for advertising on the Display Network? - The Future Of Ink

Home Campaign Manager Brand Controls Basics Assessment How does Google determine which content is suitable for advertising on the Display Network?

All publishers are required to adhere to the AdSense policies, which dictate the types of content suitable for ads.
Publishers tell Google which content is suitable for ads.
Once Google approves a new publisher, all of that publisher’s content is eligible to serve ads through the Display Network.
It categorizes content into three categories: low, medium, and premier.