Which three WAN/MAN configurations are valid in the Cisco Unified Contact Center Enterprise clustering over the WAN depl

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Which three WAN/MAN configurations are valid in the Cisco Unified Contact Center Enterprise clustering over the WAN deployment model? (Choose three.)

A. A highly available visible network WAN/MAN/DWDM and a dedicated private network WAN.
B. A highly available MPLS WAN shared by the visible and private networks with a 2 second convergence time.
C. A highly available MPLS WAN shared by the visible and private networks where the private network is pinned to a single path and the visible network aligned to an alternate path failing to the private network path as redundant link with QoS and bandwidth provisioning.
D. A highly available DWDM/CWDM network shared by the visible and private networks with a sub-500 ms convergence time.
E. All traffic is converged on a single MPLS network by using appropriate QoS markings and settings to ensure latency and bandwidth requirements.
F. A highly available DWDM/CWDM network shared by the visible and private networks with 1500 ms convergence time.