1. A is the correct answer. Each HBA in a host is assigned a WWN that is unique to it. WWN zoning allows access to LUNs based on the WWN of the device. In this way, it does not matter which port the HBA is plugged into on the switch because the zone will still allow access based on the WWN of the HBA port, which would still reside in the host.
B is incorrect because the SFP is simply a transceiver, and it does not contain port information or an identification number. The SFPs can be changed without impacting the zoning. C