Joaquin is launching a campaign for his client,TinyFeet,and only wants to buy fixed-price inventory.Which of the following options should he choose?

A PMP (Private Marketplace) preferred deal allows Joaquin to buy inventory at a fixed price directly from a publisher. This ensures guaranteed impressions at a set cost, aligning with his client's requirement for fixed-price inventory. A PMP private auction involves bidding, which doesn't guarantee a fixed price. Amazon Publisher Services (APS) is a suite of services for publishers to optimize their ad revenue, not a direct buying mechanism for advertisers to secure fixed-price inventory.