What is the impact of complex VPN topologies such as Central Services VPN on the VRF tables in the PE-routers?

A.
Complex VPN topologies might require more than one VRF per VPN.

B.
Complex VPN topologies might require more that one VRF per interface.

C.
Complex VPN topologies might require the use of multiple routing protocols to separate VPN address spaces.

D.
Complex VPN topologies might require the use of the public address space to ensure there is no overlap in the address spaces.

Explanation:

Not D: D is incorrect. In the same VPN, no matter complex or not, there should not be overlapping address. Does public address solve this problem?Probably, but you need to plan in advance (buy these addresses then use them), the same can be achieved with private addresses if you DO plan in advance.