Your company has a single Active Directory domain. All servers run Windows Server 2008. The company network has 10 servers that perform as Web servers. All confidential files are located on a server named  FSS1. The company security policy states that all confidential data must be transmitted in the most securemanner. When you monitor the network， you notice that the confidential files are stored on the FSS1 server are being transmitted over the network without encryption. You need to ensure taht encryption is always used when the confidential files on the FSS1 server are transmitted over the network. What are two possible ways to achieve this goal？（）

A. Deactivate all LM and NTLM authentication methods on the FSS1 server
B. Use IIS to publish the confidentials files. activate SSL on the ISS server， and then open the files as a web folder.
C. Use IPSec encryption between the FSS1 server and the computers of the users who need to access the confidential files
D. Use the Server Message Block （SMB） signing between the FSS1 server and the computers of the users who want to access the confidential files.
E. Activate offline files for the confidential files that are stored on the FSS1 server. In the Folder Advanced.Properties dialog box， select the Encrypt contents to secure data option.