The certification body has not been able to verify the implementation of corrective actions for any identified major nonconformity within six months after the last day of the Stage 2 audit. What must the certification body do in this case?
Comprehensive and Detailed In-Depth
According to ISO 17021-1:2015, Clause 9.4.10 (Corrective Actions for Major Nonconformities):
If a major nonconformity is not corrected within six months, the certification body must reject the certification request.
Another Stage 2 audit (C) is not required unless the organization reapplies for certification.
Restarting all audit activities (B) is unnecessary; instead, certification is denied.
Thus, A is the correct answer.
ISO 17021-1:2015, Clause 9.4.10 (Corrective Actions for Major Nonconformities)