Which statement is true regarding client-server database connectivity?

A.
A remote connection uses Interprocess Communication (IPC).

B.
A loopback connection can be made with either the APPC or TCP/IP protocol enabled.

C.
A remote connection is established between a DB2 client in a different location from the database server.

D.
A DB2 client running a lower version of DB2 can establish a local connection to a server running on a newer
version.