A Windows 2012 Server has a 1 GB thin-provisioned LUN in a 10 GB thin-provisioned volume. After copying a 500 MB file to the LUN, you observe the LUN using
500 MB of space in the volume. After deleting the 500 MB file, you observe the LUN is still using 500 MB of space in the volume.
Which two steps are required to reclaim the space? (Choose two.)

A.
Press Optimize in the Windows Defragment and Optimize Drives utility.

B.
Enable space-allocation on the LUN.

C.
Run TRIM on the host.

D.
Empty the Recycle Bin on the host.