In Cost Of Quality concept, External Failure Costs mean:

Correct answer is All costs associated with the product failure at customer place / field after the product is sold

Option "A".....................

a is my answer All costs associated with quality initiatives that help avoid defects

External Failure Costs come from costs associated with defects that are found after the customer receives the product or service. These costs are incurred because the product shipped failed to conform to quality requirements and may include warranties, repairs, recalls, legal actions and lost sales

So the appropriate answer is option "D"

D is the answer without any doubt

d..>>>>>>>>>> All costs associated with the product failure at customer place / field after the product is sold