The customer brings their mini-tower and a new DVD/RW drive they want installed. The technician finds a second hard drive in an empty 5.25 bay connected to the secondary bus and jumpered as a slave. The ribbon cable will not stretch from the primary hard drive to the open 5.25 inch bay.
Which of the following is the BEST solution?（）

A. Connect the new DVD drive as the primary on the secondary bus and leave the old CD drive disconnected.
B. Move the secondary hard drive next to the primary hard drive and connect to the primary bus. Connect the new DVD drive as the slave on the secondary bus.
C. Move the secondary hard drive from the secondary to the primary bus and then reformat the hard drive after rebooting then reassign the drive letters in disk management prior to installing the new DVD drive on the secondary bus.
D. Move the secondary hard drive to the bay and then connect it to the primary bus. Connect themini-tower and the new DVD drive as the master on the secondary bus.