To meet their client’s goal of serving ads to a current-generation browser, the agency should use the ad inventory option “smartphone and desktop web ads.”

• They should use smartphone and tablet ads.
• They should use mobile in-app and out-stream video ads.
• They should use mobile in-app and in-stream video ads.
• They should use smartphone and desktop web ads.

The correct answer is: They should use smartphone and desktop web ads.

Explanation: The answer “They should use smartphone and desktop web ads” is correct.

To ensure ads serve on a current-generation browser for a mobile ad campaign, selecting “Smartphone web ads” and “Desktop web ads” is the appropriate choice. Current-generation browsers are prevalent on both smartphone and desktop devices. By choosing these inventory options, the agency ensures broad reach across the devices where users are likely to access the internet through modern browsers. While the campaign is “mobile,” desktop users with current-generation browsers might also see these ads depending on other targeting parameters and the websites they visit.