To answer this question, you need to understand the different types of quality assurance methods. Let's go through each option to understand why it is correct or incorrect:
Option A) Detective - This option is incorrect because detective methods are used to identify and analyze defects or issues after they have occurred. It focuses on finding and fixing problems after they have happened, rather than preventing them from happening in the first place.
Option B) Preventive - This option is correct because preventive methods are used to proactively identify and eliminate potential defects or issues before they occur. It focuses on preventing problems from happening in the first place, rather than reacting to them after they have occurred.
Option C) Corrective - This option is incorrect because corrective methods are used to address and fix defects or issues that have already occurred. It focuses on correcting problems that have been identified, rather than preventing them from happening in the first place.
Option D) Protective - This option is incorrect because protective methods are not commonly associated with quality assurance. The term "protective" does not align with the typical goals and practices of quality assurance.
The correct answer is B) Preventive. This option is correct because preventive methods are used in quality assurance to proactively identify and eliminate potential defects or issues before they occur.