Which command will prevent spanning-tree routing loops?

An FWSM is running in transparent mode. Which command will prevent spanning-tree routing loops?

A.
access-list [name] extended permit bpdu any any

B.
access-list [name] ethertype permit bpdu any any

C.
access-list [name] ethertype permit bpdu

D.
access-list [name] extended permit stp any any eq bpdu