A. Lack of segregation of duties
B. Lack of a dedicated QC function
C. Lack of policies and procedures
D. Lack of formal training and attestation
Explanation:
The greatest risk to an organization’s ability to manage QC processes is the lack of policies and procedures that define the QC objectives, standards, methods, roles, and responsibilities. Without policies and procedures, the QC processes may be inconsistent, ineffective, inefficient, or noncompliant with the relevant regulations and best practices. Policies and procedures provide the foundation and guidance for the QC processes and help to ensure their quality, reliability, and accountability.
References
ISACA CISA Review Manual, 27th Edition, page 253
Quality Control - an overview | ScienceDirect Topics
Quality Control: Meaning, Importance, Definition and Objectives