¿Cuáles son las dos formas de acceder a AMC?

The correct answer is "A través de la interfaz de usuario o las API" (Through the user interface or APIs). Amazon Marketing Cloud (AMC) offers two primary methods for users to interact with its functionalities: 1. User Interface (UI): This provides a visual, web-based platform for users to manage their AMC instance, configure data sources, build queries, and view reports. It's generally preferred for ad-hoc analysis, initial setup, and users who prefer a graphical environment. 2. APIs (Application Programming Interfaces): APIs allow programmatic access to AMC, enabling automated data ingestion, query execution, and report retrieval. This method is ideal for integrating AMC with other systems, building custom applications, or performing repetitive tasks at scale. "A través de las API o AWS" is incorrect because while AMC runs on AWS infrastructure, direct access to AMC is not typically through general AWS services but rather its dedicated UI or APIs. "A través de las API o CLI" is incorrect because AMC does not primarily offer a Command Line Interface (CLI) as a direct access method; programmatic access is predominantly via APIs.