[单选题]Consider the Mysql Enterprise Audit plugin. Which

AThe attribute STATUS is set to the string EXTERNAL_AUTH

BThe attribute PRIV_USER contains the username

CThe event type that is given in the attribute NAME is EXTERNAL_AUTH

DThere is no differentiation between native and external authentication events

EExternal authentication is managed through external auditing logs

FThe PROXY_PRIV user shows a username if external authentication is used