What is required to enable S/MIME support on the BlackBerry device? (Choose one.) | Blackberry

A. Identifier for the S/MIME Support Package for BlackBerry Smartphones
B. Passcode for the S/MIME Support Package for BlackBerry Smartphones
C. Authentication key for the S/MIME Support Package for BlackBerry Smartphones
D. Client access license for the S/MIME Support Package for BlackBerry Smartphones
E. Client validation license for the S/MIME Support Package for BlackBerry Smartphones

Answer: D