Which ad format is exclusive to Smart Shopping campaigns?

The correct answer highlights that Responsive Display Ads are an ad format exclusive to Smart Shopping campaigns. Smart Shopping campaigns utilize machine learning to automate ad creation and placements across various platforms, including the Google Display Network, where Responsive Display Ads come into play.

These ads adapt to different screen sizes and engage users with visually appealing formats, making them particularly well-suited for driving conversions in a smart campaigns environment. This exclusivity underscores how Smart Shopping campaigns leverage the enhanced capabilities of responsive ads to maximize performance through automated bidding and ad placements.

On the other hand, Local Inventory Ads, Gmail Ads, and Product Shopping Ads are available within different campaign types or formats within Google Ads. Local Inventory Ads are geared towards in-store inventory visibility, Gmail Ads are formatted for e-mail promotion, and Product Shopping Ads are traditional product-based ads that show listings in Google Shopping. Thus, they aren't exclusive to Smart Shopping but serve broader or different marketing purposes. This emphasizes the unique nature of Responsive Display Ads in the context of Smart Shopping campaigns.