Which of the following statements about authentication responses and conditions is true? （）(Choosetwo.)

• A、When a router receives a failure response, it stops querying authentication methods.
• B、When a router receives an error response, it stops querying authentication methods.
• C、If the router receives a failure response from an authentication method, it queries the next method.
• D、The router does not differentiate between failure and error responses; the authentication process is always interrupted.
• E、If it receives no response from the authentication method, a router will determine the error condition On its own; the router also has the option to proceed to the next method in a list if configured accordingly.