Final answer:
A Sitelink extension is used when an ad leads directly to a product page. It helps improve ad performance by offering users direct links to specific pages, like product pages for e-commerce businesses. The correct option is C. Sitelink extension
Step-by-step explanation:
When an ad links directly to a product page, the ad extension being referred to is a Sitelink extension. This type of extension allows digital marketers to add additional links to their ads, leading users to specific pages of a website.
In the case of an e-commerce business, it is particularly useful as it can help guide potential customers directly to a product they are interested in, thereby potentially increasing the chances of a sale.
Sitelink extensions can be added to different campaign types, including Search, Video, and even Shopping campaigns. They provide users with more options and can significantly improve the performance of your ads by offering more relevant resources to users, making your campaigns more effective and boosting click-through rates. The correct option is C. Sitelink extension