Refer to the graphic.

Host A and Host B use VLAN routing to facilitate communication. When interface G0/0/1.2 of RTA receives a frame from Host B, what will RTA do?
Refer to the graphic.
Host A and Host B use VLAN routing to facilitate communication. When interface G0/0/1.2 of RTA receives a frame from Host B, what will RTA do?
RTA will remove the VLAN tag from the frame received from Host B (VLAN 20) and add a new tag for VLAN 10 before forwarding it to Host A. This process of VLAN re-tagging ensures that the data is correctly identified and routed within the appropriate VLANs in the network.
c is the correct answer, if RTA just remove the vlan tag, then the frame won't belong vlan 10
"""i think"""" B is correct because in question (RTA receives a frame from Host B, what will RTA do?) and not (Host B to Host A, what will RTA do? )
the correct answer is c
C, the router adds the VLAN 10 tag before forwarding the frame.
C is the correct answer.
c is the correct answer
C correct one
A router cannot add a tag. It is work of a switch.