- Advertiser and Insertion Order
- Partner and Insertion Order
- Campaign and Advertiser
- Partner and Advertiser
The correct answer is: Partner and Advertiser
Explanation: Partner and Advertiser levels are required to permission and link a YouTube channel to run TrueView.
By linking a YouTube channel to a Display & Video 360 advertiser, you can use an expanded set of features for TrueView and bumper campaigns, as well as gain insights into your traditional linear TV campaigns with TV Ad Explorer.
Read more here: https://support.google.com/displayvideo/answer/6273819