Universal Containers is creating a mobile application that will be secured by Salesforce Identity using...

Salesforce’s user-agent flow implements the OAuth 2.0 implicit grant model for browser-based or mobile applications that obtain authorization through a browser. In that flow, the client uses a client ID and requests specific scopes. The user authorizes the app, and the resulting token is delivered through the browser-based redirect. In Salesforce identity examples, refresh-related behavior is often part of the mobile discussion, while an authorization code is not a characteristic of the implicit model. That is the key concept to remember: implicit or user-agent flow is centered on browser-mediated authorization without a back-end code exchange. So the valid concepts align with client identity and requested access, not with the server-side authorization-code step used in the web server flow. This is why options A, B, E work together as the correct solution.