Company network is implemting IPv6 into their existing IPv4 netwrok. Which statement is trueabout incorporating IPv6 into an already existing IPv4 network？（）

• A、Only OSPF version 3 can be utilized for routing IPv4 and IPv6
• B、IPv4 and IPv6 networks can be routed simultaneously
• C、IPv6 can be routed using the same routing protocol versions as IPv4
• D、A router routing for IPv6 and IPv4 must convert IPv4 packets to IPv6 packets to route them
• E、None of the other alternatives apply