The costs of quality that are incurred in detecting units of product that do not conform to product specifications are referred to as:

A. Prevention costs.

B. Appraisal costs.

C. Rework costs.
D. Failure costs.

Explanation:
Appraisal activities include inspection and testing. Appraisal costs (such as test equipment maintenance and destructive testing) are incurred to detect products not conforming to specifications.