You are creating a Microsoft Office SharePoint Server 2007 site. A document library contains documents on new products. The documents must contain a label that denotes the product status. You need to add a label to all documents in the library. What should you do?

A.
Modify Variation Labels from the Site Collection Administration page.

B.
Start an approval workflow each time a new document is added to the library.

C.
Modify the document template for the existing document library to include the label.

D.
Create an Information Management Policy feature for the document library that enforces label creation.