Your client is a leading outdoor gear retailer. For their new Display & Video 360 campaign, they want to work directly with a specific media outlet to make sure they achieve a fixed number of impressions within the outdoor adventures section of the publisher's site. What deal type should they use?

A Programmatic Guaranteed deal is the correct choice because it allows advertisers to directly negotiate with a publisher for a fixed number of impressions at a set price. This ensures guaranteed inventory and delivery, which aligns with the client's need to achieve a specific impression volume on a particular site section. An open auction deal would not guarantee impressions or placement. A preferred deal offers a fixed price but doesn't guarantee inventory. A private auction deal involves a select group of buyers bidding, but still doesn't guarantee impression volume or specific placement like a Programmatic Guaranteed deal does.