During an office move a sever containing the employee information database will be shut down and transported to a new location. Which of the following would BEST ensure the availability of the employee database should happen to the server during the move?
A. The contents of the database should be encrypted; the encryption key should be stored off-site
B. A hash of the database should be taken and stored on an external drive prior to the move
C. The database should be placed on a drive that consists of a RAID array prior to the move
D. A backup of the database should be stored on an external hard drive prior to the move