How can Access Logix best be described?

A.
Enabled when each SP boots
Can prevent hosts from reading LUNs from unrelated hosts

B.
Licensed feature that enables hosts to access data
Maps LUNs to certain SP ports

C.
Maps LUNs to certain SP ports
Can prevent hosts from writing to LUNs from unrelated hosts

D.
Factory installed feature that cannot be disabled
Provides a masking view for hosts using SP ports and LUNs