Consider the Mysql Enterprise Audit plugin. The following event detail is found in the audit log: Which two points can be concluded from the given event?（）

• A、A connection as the user kate was successful
• B、A connection failed due to authentication being unsuccessful
• C、A connection was attempted via socket rather than TCP
• D、A connection was blocked by a firewall or a similar security mechanism
• E、A connection failed because the proxy user privileges did not match the login user