The correct answer is C - Implementing a mobile device management (MDM) solution.
WGU Cybersecurity Architecture and Engineering (KFO1 / D488) describes that an MDM solution enables organizations to enforce security policies on personal devices, such as encryption, remote wipe capabilities, and application controls. MDM allows safe access to corporate resources while managing the inherent risks of BYOD environments.
Blocking access (A) contradicts the BYOD policy goal. Security audits (B) monitor but do not control personal devices. Awareness training (D) is important but does not enforce technical protections on devices.
Reference Extract from Study Guide:
"Mobile device management (MDM) solutions enforce security policies on employee-owned devices, ensuring compliance and reducing the risks associated with BYOD implementations."
- WGU Cybersecurity Architecture and Engineering (KFO1 / D488), Mobile Device Security