CCTVs should have some type of recording system. Digital recorders save images to ____________ and allow advanced search techniques that are not possible with __________recorders.

A.
Video tape, hard drives

B.
Hard drives, video tape

C.
Duplexed disks, hard drives

D.
Clusters, duplexed disks

Explanation:
CCTVs should have some type of recording system. Digital recorders save
images to hard drives and allow advanced search techniques that are not possible
with videotape recorders.