- Through a third-party video hosting tool
- On Display & Video 360 using a 1×1 pixel and a Native ad tag
- On Campaign Manager
- On the advertiser’s public YouTube channel
The correct answer is: On the advertiser’s public YouTube channel
Explanation: To create a video ad, your videos must be hosted on YouTube. TrueView video ads are an exciting way to reach and engage your audience on YouTube and across the web. You can create and manage your TrueView campaigns in Google Ads, using the “Video” campaign type.
Read more here: https://support.google.com/google-ads/answer/2375497