Organizations are sometimes faced with the need to locate cluster members in different geographic locations that are distant from each other. A typical example is replicated data centers whose location is widely separated for disaster recovery purposes. What are the restrictions of this solution?

A.
There are no restrictions.

B.
There is one restriction: The synchronization network must guarantee no more than 150 ms latency (ITU Standard G.114).

C.
There is one restriction: The synchronization network must guarantee no more than 100 ms latency.

D.
There are two restrictions: 1. The synchronization network must guarantee no more than 100ms latency and no more than 5% packet loss. 2. The synchronization network may only include switches and hubs.