You attach an external drive to a Windows 8.1 computer.
You need to ensure that scheduled defragmentation does not run on the external drive.
What should you do?

A.
Disable write caching on the external drive.

B.
Run the defrag command and configure the schedule settings.

C.
Run the diskpart command and select the external drive.

D.
Configure the Optimize Drives setting to exclude the external drive.