With AdWords for video, an advertiser can target:

  • A) All of the listed answers are correct
  • B) Websites on the Google Display Network (GDN)
  • C) Specific YouTube channels
  • D) Specific YouTube videos

The correct answer is:

A) All of the listed answers are correct

Explanation: In AdWords, you can create compelling video campaigns with a range of video ad formats to engage customers in different ways on YouTube and across video partner sites. Available video ad formats include TrueView in-stream ads, TrueView video discovery ads, and bumper ads.

Read more here: https://support.google.com/adwords/answer/2375464?hl=en