What’s the variable that determines whether or not a Search ad shows in the results for a query, and what position it appears in?

• Ad Rank determines this. It’s based on a variety of factors to show useful ads.
• Ad quality determines this. It’s based on ad and website relevance.
• Bids determines this. It’s based on how much marketers will pay for a click.
• Asset impact determines this. It’s based on sitelinks and image assets.

The correct answer is:

• Ad Rank determines this. It’s based on a variety of factors to show useful ads.