What is the key difference between a Private Auction (PA) deal and a Preferred Deal (PD) on Amazon DSP?

The correct answer is Private Auctions have a varied CPM, while Preferred Deals have a fixed price because the key distinction between these two types of deals is how pricing is structured. In a Private Auction (PA), multiple advertisers can bid for the available inventory, resulting in a varied CPM (Cost Per Thousand Impressions), depending on the competition and bids placed during the auction. On the other hand, in a Preferred Deal (PD), the price is fixed between the advertiser and the publisher before the campaign starts, ensuring a predetermined cost for the inventory, regardless of the auction dynamics. This makes the pricing more predictable for advertisers in a Preferred Deal, whereas the cost in a Private Auction is influenced by real-time bidding. The other options incorrectly describe the pricing structures or benefits associated with these deal types.