____ es una solución de clean room que se usa para ayudar a medir el desempeño del retail en la que los anunciantes pueden realizar fácilmente análisis de señales seudonimizadas, incluso las señales de Amazon Ads y sus propias entradas.

Amazon Marketing Cloud (AMC) is the correct answer because it is a clean room solution designed for retail measurement. It allows advertisers to perform custom analytics on pseudonymized signals, including Amazon Ads data and their own first-party inputs, providing a comprehensive view of campaign performance and customer journeys. Amazon Brand Analytics is incorrect because it provides pre-built reports and insights on customer search behavior, sales, and ASIN performance, but it is not a clean room solution for custom analysis with advertiser-provided data. Brand Metrics is also incorrect as it refers to general metrics used to evaluate brand health and performance, not a specific clean room technology.