How would you implement an overlapping VPN when the sites contained in the overlapping portion of the two simple VPNs contain an overlapping address space?

A.
Combine the overlapping VPN with a central service VPN.

B.
Implement a NAT service to provide unidirectional address translation.

C.
Implement a dual NAT service with a registered address to be implemented and exported between the two central sites.

D.
Disable routing updates between the overlapping spaces and use a DNS implementation.

E.
Disable routing updates between the overlapping spaces and use static routing.