• Through the APIs or CLI
• Through the UI or the APIs
• Through the APIs or AWS

The correct answer is: Through the UI or the APIs

Explanation: There are two ways to access AMC:

• Through the UI: The graphical user interface, which allows users to interact with AMC features, run queries, and manage reports visually.
• Through the APIs: Amazon Ads APIs, which enable developers to programmatically access AMC data, automate workflows, integrate applications, and build tools at scale.

Reference content: From Amazon’s official documentation – (Amazon Marketing Cloud)

“Advertisers and partners can now access Amazon Marketing Cloud APIs from the Amazon Ads advanced tools center … These new AMC APIs follow the industry-standard OAuth 2.0 authorization framework … Multiple users and partner organizations can now access one AMC instance at the same time.”