You need to ensure that User1 can save and edit documents on the client computer by using office.What should you do?

Your company subscribes to an Office 365 Plan E3. A user named User1 installs Office Professional Plus
for Office 365 on a client computer. From the Microsoft Online Services portal, you assign User1 an
Office Professional Plus license. One month after installing Office, User1 can no longer save and edit
Office documents on the client computer. User1 can open and view Office documents.
You need to ensure that User1 can save and edit documents on the client computer by using office.What should you do?

A.
Install the Office Customization Tool.

B.
Reinstall Office Professional Plus.

C.
Install the Microsoft Online Services Sign-in Assistant.

D.
Upgrade the subscription to Plan E4.

Explanation:
http://technet.microsoft.com/en-us/library/gg702619(v=office.15).aspx