A computer has become progressively slower when retrieving files from the local hard drive.
Which of the following actions should a technician take to correct this problem?

A.
Run a defragmentation program on the affected volume.

B.
Decrease the size of the swap file in 32 MB increments until the problem is resolved.

C.
Increase the size of the registry file until the problem is resolved.

D.
Reformat the hard drive and re-install all programs.