You have an Exchange Server 2010 organization that contains a database availability group (DAG).
You need to recommend a Mailbox database security solution to meet the following requirements:
• Maximize read/write performance
• Prevent access to database files if a server is stolen
What should you recommend?

A.
Encrypted File System (EFS)

B.
DAG network encryption

C.
Rights Management Service (RMS)

D.
Windows BittLocker Drive Encryption

Explanation: