While conducting a CMMC Level 2 Assessment, the Lead Assessor determines that the OSC has...

The presence of badge readers, PIN code pads, and keys directly corresponds to controlling and managing physical access devices, which maps to PE.L1-3.10.5 under the Physical Protection (PE) domain. This practice ensures that only authorized individuals have access to physical areas containing information systems.

The other options address unrelated requirements:

MP.L2-3.8.5 addresses marking CUI media,

SI.L2-3.14.3 addresses monitoring security alerts,

PS.L2-3.9.2 addresses protections during personnel changes.

Reference Documents:

CMMC Model v2.0, Level 1–3 Practices

NIST SP 800-171 Rev. 2, Control PE-3