What additional command would need to be applied to both sides of the Q-in-Q trunk?

After configuring Q-in-Q on a new interface, the customer has requested that the IOS version and
remote model also be viewable via the trunk. What additional command would need to be applied
to both sides of the Q-in-Q trunk?

A.
l2protocol-tunnel cdp

B.
l2protocol-tunnel stp

C.
l2protocol-tunnel vtp

D.
l2protocol-tunnel lldp

E.
l2protocol-tunnel odr