What does the Ad Preview and Diagnosis Tool do?

The Ad Preview and Diagnosis Tool is designed to help advertisers see how their ads will appear in search results without generating impressions that would affect their metrics. This tool allows users to enter specific search queries and locations to view a simulation of the search results as they would appear to actual users. This way, advertisers can verify the effectiveness and visibility of their ads without influencing their performance data.

While the other choices suggest functionalities like ad copy improvement, keyword performance metrics, or cost calculations, these are not the primary functions of the Ad Preview and Diagnosis Tool. The focus is on providing a clear view of your ad's appearance in relevant search contexts, allowing for optimal adjustments and strategies without impacting overall ad performance metrics.