Which solution is the SIMPLEST way to allow the authentication of users using their social media identities?

Explanations:

Amazon Cognito provides an easy way to authenticate users using various identity providers, including OpenID Connect-compatible social media platforms. It handles user authentication, and you can manage user sessions and save user progress effectively.

AssumeRoleWithWebIdentity API is used for AWS services to assume roles based on a web identity token. While it allows integration with OpenID Connect providers, it requires more complex setup and management compared to using a service specifically designed for user authentication like Amazon Cognito.

Amazon Cloud Directory is primarily for organizing and managing directory information, not for user authentication. It does not provide the functionality needed to authenticate users via social media identities.

Active Directory (AD) Connector is designed to connect AWS services with an on-premises Active Directory. It does not directly support OpenID Connect authentication and is not suitable for mobile game user authentication with social media identities.