You are designing a solution for Certkiller .com using a DL740 as the backup target. During the process, you discovered that the solution will require more front-end ports than this model initially provides. How can you increase the number of front-end ports?

A.
Convert unused back-end ports to target mode

B.
Install additional front-end cards

C.
Convert unused back-end ports to initiator mode

D.
Use a DL720 instead of a DL740