Answer: 6: verifying that the system works
Explanation: HACCP (Hazard analysis and critical control points) Is a system applied to ensure food safety, it involves identification of the possible hazards within and outside a production process capable of contaminating food products and implementing corrective steps to put them in check. It is a major requirement for Food safety management system certification in the world.
Verifying that the system works is one of the principles of HACCP, it involves performing procedural (laid down) checks,comparing the results and analyzing the result.