A. mysql> CREATE_USER ''@'' IDENTIFIED WITH authentication_pam ACCOUNT LOCK;mysql> CREATE USER 'employee'@'localhost' IDENTIFIED BY 'more_secrets';mysql> GRANT PROXY ON 'employee'@'localhost' TO ''@'';

B. mysql> CREATE USER 'robert'@'localhost' IDENTIFIED BY 'secret_password';mysql>CREATE USER 'employee'@'localhost' IDENTIFIED BY 'more_secrets';

C. mysql> CREATE USER 'employee'@'localhost' IDENTIFIED BY 'more_secrets';mysql> GRANT PROXY ON 'employee'@'localhost' TO 'robert'@'localhost';

D. mysql> CREATE USER 'employee'@'localhost' IDENTIFIED BY 'more_secrets';mysql> CREATE USER ''@'' IDENTIFIED BY 'valid_password' WITH PROXY 'employee'@'localhost';