Answer:
B. Perform a scan of the drive for file fragmentation
Step-by-step explanation:
When files are deleted from a drive chunks might be left behind, so over time there's chucks scattered around. When new files are added, they are also scattered around into the gaps left by the fragments (chunks of files scattered around the drive) making it harder to read for the system especially because they are large files. So the Hard drive has to be defragmented to rearrange the chucks and allow files to be easily read.