non-root user can run rsh commands from serverA to serverB， but attempts to run rsh commands by the root user return with a permission error message. What action will resolve the problem？ （）
- AAdd root user to the /etc/hosts.equiv on serverb
- BCreate $HOME/.rhosts file for the root user on serverb
- CRestart the rshd daemon with root enabled option on serverb
- DAdd entry to allow root user from serverA to the /etc/hosts.allow on server