Refer to the exhibit and the show interfaces fastethernet0/1 switchport outputs. Users in VLAN 5 on switch SW_A complain that they do not have connectivity to the users in VLAN 5 on switch SW_B. What should be done to fix the problem?

A.
Configure the same number of VLANs on both switches.

B.
Create switch virtual interfaces (SVI) on both switches to route the traffic.

C.
Define VLAN 5 in the allowed list for the trunk port on SW_A.

D.
Disable pruning for all VLANs in both switches.

E.
Define VLAN 5 in the allowed list for the trunk port on SW_B.

Explanation:

switchport trunk allowed vlan, defines which VLANs can be trunked over the link. By default, a switch transports all active VLANs (1 to 4094) over a trunk link. There might be times when the trunk link should not carry all VLANs. For example, broadcasts are forwarded to every switch port on a VLAN-including the trunk link because it, too, is a member of the VLAN.
If the VLAN does not extend past the far end of the trunk link, propagating broadcasts across the trunk makes no sense.