2. You have upgraded an existing 2Gb/s FC SAN that is using 62.5 micron multi-mode fiber from a tape library to a server that is 100 meters away to 4Gb/s. After switching to the 4Gb/s Fibre Channel equipment, a connection to the server cannot be maintained. When a connection is made, numerous errors are reported. What is the cause of the errors? a. Fibre Channel does not support 4Gb/s tape connections b. Fibre Channel cable length has been exceeded c. Fibre Channel cable length requires an optical extender d. 4Gb/s Fibre Channel must use 50 micron multi-mode fibre