¿Cuál de las siguientes afirmaciones sobre marketplaces privados (PMP) es verdadera?

Private Marketplaces (PMPs) are indeed invitation-only marketplaces, meaning specific advertisers are invited to bid on premium inventory from a publisher. This controlled environment allows advertisers broader access to third-party supply that might not be available on the open exchange, often including higher-quality, brand-safe placements. PMPs extend programmatic advantages, such as real-time bidding and data-driven targeting, to direct publisher deals, offering more efficient and effective media buying than traditional direct sales. The statement about header bidding integrations is incorrect because while header bidding is a programmatic technique, PMPs are a specific type of deal and don't inherently leverage Amazon's header bidding integrations; they can exist independently of a specific header bidding wrapper.