Final answer:
The AWS Management Console is the service used to manage agreements with AWS. It is a user-friendly web-based interface that provides tools for account and service management. Other services such as the AWS CLI, SDK, and CloudFormation are intended for automation and scripting, not for managing agreements.
Step-by-step explanation:
To manage agreements with AWS, AWS Management Console is the service typically used by customers. The AWS Management Console is a web-based interface that allows customers to manage various AWS services and their respective accounts in a user-friendly manner. You can use it to launch and manage instances, change your billing preferences, configure your identity and access management settings, and more. This includes managing your agreements such as the AWS Customer Agreement or any other service level agreements you might have with AWS.
While the other services listed, such as the AWS Command Line Interface (CLI), AWS Software Development Kit (SDK), and AWS CloudFormation, are powerful tools for interacting with AWS services, they are more geared towards automating AWS services rather than managing account-level agreements. The CLI and SDK allow for scripting and programming against AWS services, and CloudFormation is used for automating the setup and deployment of resources within AWS.