Which two statements about the Cisco Unified Contact Center Enterprise clustering over the WAN deployment model are true

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Which two statements about the Cisco Unified Contact Center Enterprise clustering over the WAN deployment model are true? (Choose two.)

A. With Cisco Unified Computing System C-Series Servers, you must deploy dual SAN on each data center.
B. The visible network that supports the communication between Cisco Unified Communications Manager subscriber nodes must be highly available and designed with no single point of failure.
C. Agents at remote locations must be registered to only one data center for their Cisco Unified IP Phone connections if they are using Cisco Finesse.
D. Cisco Unified Contact Center Enterprise IVR Peripheral Gateway cannot be split between the data center locations to maintain a local JTAPI connection for call control.
E. Cisco Unified Communications Manager Peripheral Gateways that are split between the two data centers can share the same private network connection as the central controller (router and logger) components.