Provide a comprehensive explanation of the OAuth 2.0 Authorization Code flow, specifically in the context of implementing 'Log in with Google' functionality for an application. Your explanation should include the following sections:

1. High-Level Overview of the Authorization Code Flow
2. Roles in the Flow: Detail the responsibilities of the User, Your Application, and The Authorization Server.
3. Purpose of the Authorization Code: Explain its security benefits.
4. Purpose of the Access Token: Describe its representation, usage, lifespan, and scope.