Correct Answer – A
AWS Systems Manager allows users to control their AWS resources by unifying services into a user interface. One in which they can be able to view, automate and monitor operational tasks.
https://aws.amazon.com/systems-manager/
https://docs.aws.amazon.com/systems-manager/latest/userguide/what-is-systems-manager.html
Option B is incorrect because the Manage Console is a web-based graphical user interface that users interact with when administering AWS services and resources.
https://docs.aws.amazon.com/awsconsolehelpdocs/latest/gsg/getting-started.html?id=docs_gateway#learn-whats-new
Option C is incorrect because Resource Groups are a collection of AWS resources within a single AWS Region. In the scenario, the AWS resources are in different AWS Regions.
https://docs.aws.amazon.com/ARG/latest/userguide/welcome.html
Option D is incorrect because Resource Access Manager (AWS RAM) allows users to share resources with other AWS accounts or via AWS Organizations.
https://docs.aws.amazon.com/ram/latest/userguide/what-is.html