Ron has an older computer to which he frequently downloads and saves company files. He

recently noticed that he was running low on disk space and decided to delete many old files
that he no longer needed. He now notices that it takes a long time to open or save
documents to his hard drive. Which maintenance task can help?

A.
Disk defragmentation

B.
chkdsk command

C.
fdisk command

D.
Disk cleanup