Which of the following would be the BEST way for a company to reduce the risk of data loss resulting from employee-owned devices accessing the corporate email system?

A. Link the bring-your-own-device (BYOD) policy to the existing staff disciplinary policy.
B. Require employees to undergo training before permitting access to the corporate email service.
C. Require employees to install a reputable mobile anti-virus solution on their personal devices.
D. Use a mobile device management (MDM) solution to isolate the local corporate email storage.