Consider the Mysql Enterprise Audit plugin. Which statement is true when you identify a connection event that has used external authentication?（）

A. The attribute "STATUS" is set to the string EXTERNAL_AUTH
B. The attribute "PRIV_USER" contains the username
C. The event type that is given in the attribute "NAME" is EXTERNAL_AUTH
D. There is no differentiation between native and external authentication events
External authentication is managed through external auditing logs
F. The "PROXY_PRIV" user shows a username if external authentication is used