¿En cuál de las siguientes situaciones debería un anunciante considerar el uso de pujas automáticas?

Automatic bidding in Sponsored Brands campaigns is most effective when the goal is to optimize for sales efficiency. This is because automated strategies use machine learning to adjust bids in real-time, aiming to maximize conversions (sales) within a given budget. While Sponsored Brands can contribute to brand recognition, automatic bidding's primary strength lies in driving performance metrics like sales and return on ad spend (ROAS). The option "Para optimizar las pujas en campañas de Sponsored Products y Sponsored Brands y lograr la eficacia de las ventas" is incorrect because automatic bidding is currently only available for Sponsored Brands campaigns, not Sponsored Products. The options focusing solely on brand recognition are less accurate as the core benefit of automatic bidding is typically sales optimization.