Better prevention of poor quality:
a. reduces internal and external failure costs, and increases appraisal cost.
b. reduces internal and external failure costs, and does not affect appraisal cost.
c. reduces external failure cost, does not affect internal failure cost, and increases appraisal cost.
d. reduces internal and external failure costs and appraisal cost
Answer: d. reduces internal and external failure costs and appraisal cost.