What is an accurate statement about the Common Internet File System (CIFS) protocol?

A.
Enables a CIFS server to maintain connection information regarding every connected client

B.
Uses a Remote Procedure Call mechanism to provide access to the CIFS supported file systems

C.
Contains an open variation of the stateless user datagram protocol that stores information about open files

D.
Uses file system locking to enable users to simultaneously overwrite all metadata of a file system

Explanation: