Costs incurred in customer service are categorized as . A. internal failure costs B. appraisal costs C. prevention costs D. external failure costs

D. external failure costs  

Explanation:

External failure costs  -

It refers to the amount of money suffered , because of any defect in the products , after being sold to the customers , is referred to as the external failure costs .

It includes the cost like -

warranty costs , return of product cost , product recalls , etc .

Hence , from the given statement of the question ,

The correct option is D. external failure costs  .

you can put this in your 11 sentence summary

" most of the money would be invested in innovation, economic convergence."

yes the correct answer was

b.the increased supply will create a surplus.