QUESTION $33$

A technician removed several instances of malware from a customer's Windows PC$.$ Now when the user doubleclicks $.$doc files to open them, an error message appears asking what program to use to open the files. Which option is most likely to cause this error?

a$.$ The application used to open doc files was corrupted during the malware removal process.

b$.$ The DLL file for the doc file type was erased during the malware removal process.

c$.$ The malware removal process changed the file association for the doc file type.

d$.$ The malware removal process deleted the file the user was attempting to open.