What happens by default on an Nokia 7750 SR when a VPLS accepts a tagged frame at the ingress SAP 1/1/1:100?

What happens by default on an Nokia 7750 SR when a VPLS accepts a tagged frame at the ingress SAP 1/1/1:100?
A . The FCS is verified and kept in the customer frame. The VLAN tag is kept and transported over the network.
B . The FCS is verified and kept in the customer frame. The VLAN tag is removed for transport over the network.
C . The FCS is verified and removed from the frame. The VLAN tag is kept for transport over the network.
D . The FCS is verified and removed from the frame. The VLAN tag is removed for transport over the network.

Answer: D