What is the method used to filter traffic being bridged within a VLAN?

A.
Ethernet maps

B.
router ACLs

C.
VLAN maps

D.
IP ACLs

Explanation:
You can use VLAN ACLs or VLAN maps to provide access-control for all packets (bridged
and routed). You can use VLAN maps to filter traffic between devices in the same VLAN.
VLAN maps are configured to provide access control based on Layer 3 addresses for IPv4.
Unsupported protocols are access-controlled through MAC addresses using Ethernet ACEs.
After a VLAN map is applied to a VLAN, all packets (routed or bridged) entering the VLAN
are checked against the VLAN map.
Reference:
http://www.cisco.com/en/US/docs/switches/lan/catalyst3750x_3560x/software/release/12.2_
55_se/configuration/guide/swacl.html