Which changes resolve this issue?

Refer to the exhibit.

A network administrator configured an IPv6 access list to allow TCP retum traffic only, but it is not working as expected.

Which changes resolve this issue?
A . ipv6 access-list inbound
permit tcp any any syn
deny ipv6 any any log
!
interface gi0/0
ipv6 traffic-filter inbound in
B . ipv6 access-list inbound
permit tcp any any established
deny ipv6 any any log
!
interface gi0/0
ipv6 traffic-filter inbound out
C . ipv6 access-list inbound
permit tcp any any established
deny ipv6 any any log
!
interface gi0/0
ipv6 traffic-filter inbound in

View Answer

Answer: B