What is the maximum number of headlines an advertiser can provide for their Responsive Search Ads? Select one option.

Explanation: In Microsoft Search Advertising, advertisers can provide up to **15 headlines** for their Responsive Search Ads (RSAs). RSAs are dynamic ad formats that automatically adjust the ad's size, appearance, and format to fit available ad space across various devices and placements. By providing multiple headlines, advertisers can offer a variety of messaging options and increase the likelihood of showing relevant content to users. With 15 headlines available, advertisers have ample room to experiment with different messaging variations, including promotions, unique selling propositions, and calls to action. This flexibility enables advertisers to create compelling and engaging ad experiences that resonate with their target audience while maximizing the potential for ad performance and conversion. Therefore, selecting 15 headlines as the maximum number aligns with the capabilities of Responsive Search Ads in Microsoft Search Advertising, empowering advertisers to craft impactful ad campaigns that drive results.