What does Cisco recommend as the maximum number of ports and users for Cisco Unity Connection on a s

What does Cisco recommend as the maximum number of ports and users for Cisco Unity
Connection on a single server?

A.
100 ports, 10,000 users

B.
250 ports, 20,000 users

C.
250 ports, 50,000 users

D.
500 ports, 20,000 users

Explanation: