Dylan Is Working on a System That Has Been Having

Multiple Choice

Dylan is working on a system that has been having issues with files. Recently, Dylan has noticed that some of the filenames have strange characters, and the file sizes seem to be excessively large. File have been disappearing and Windows system files have been changed. ​
What might be the problem with the computer?

A) The hard drive is failing.
B) Windows OS has become corrupt.
C) Malware is corrupting the files.
D) The computer has become part of a botnet.