You need to repair the application

You are troubleshooting a computer that runs Windows 8.1.
A third-party application no longer functions correctly.
You need to repair the application.
What should you do?

A.
Run the reset /f command and specify the application’s .msi file.

B.
Run the msiexec /f command and specify the application’s .msi file.

C.
Use File History to revert the application’s .msifile to a previous version.

D.
Run the replace command, specify the application’s .msi file as the source, and then specify the application’s
original installation directory as the destination.

Explanation:
http://technet.microsoft.com/en-us/library/cc759262(v=ws.10).aspx (search for ‘/f’)
http://technet.microsoft.com/en-us/library/cc759262%28v=ws.10%29.aspx
Msiexec (command-line options)
To repair a product
Syntax msiexec /f [p][o][e][d][c][a][u][m][s][v]{Package | ProductCode}