To determine whether an ad drove incremental results,what method would you use?

The selected answer,Geo-Based,is correct because this method allows advertisers to assess the impact of their ads on incremental results by comparing performance across different geographic regions.By dividing areas into control and test groups, advertisers can analyze how ad exposure influences key metrics such as sales or foot traffic in targeted locations versus those that did not receive the ads.This approach helps isolate the effect of the advertising campaign,providing clear insights into its effectiveness in driving additional results that would not have occurred without the ad exposure.Geo-based analysis thus serves as a robust framework for evaluating the true impact of advertising efforts.