What does linking a Google Ads account to a YouTube account let an advertiser do?
- Access more video reporting metrics.
- All of the listed answers are correct.
- Create a remarketing list.
- Create call-to-action (CTA) overlays.
By linking a YouTube channel to an AdWords account, you can access additional video view statistics, call-to-action (CTA) overlays, and remarketing and engagement statistics such as earned views.
Read more here: https://support.google.com/adwords/answer/3063482?hl=en