Why is optimising your ad rotation when setting up your ads recommended?
- You’ll be able to serve multiple ads per query.
- Users will be able to review your ads more quickly.
- Users will be able to see more of your ads.
- Google will select the best ad for each auction.
The Correct Answer is: Google will select the best ad for each auction.
The “Ad rotation” setting allows you to specify how often you’d like the ads in your ad group to be served relative to one another. Ads expected to attract more clicks (and conversions if you’re using a Smart Bidding strategy) are delivered more often into the ad auction than other ads in the ad group.
Read more here: https://support.google.com/google-ads/answer/112876