In a Dual Stack LITE solution, what is the Function of B4 Solution
A. Reverse network address translated of the IPV4 packet coming from the internet
B. It encapsulate the IPV4 packet using an IPV4 Tunnel
C. It decapsulate the tunneled IPV4 packet, translate the network address, and routes
D. Acts as an endpoint for ipv6 and ipv4 encapsulation and forwarding
