You copy a Web site from a development site to a staging site. You do not have the Web site in a source control application. Another developer begins to fix bugs on the staging site while the development team adds features on the development site. You need to synchronize the development site and the staging site and copy the latest version of each file to both locations. What should you do? （）

A. Use the Copy Web tool.
B. Create a Web Setup project.
C. Use the Publish Web tool.
D. Use the command line to XCOPY the files.