Correct question:
A winning formula for many ________ brands is craftsmanship, heritage, authenticity, and history, often critical to justifying a sometimes extravagant price.
A) design
B) non durable
C) durable
D) ingredient
E) luxury
Answer:
E, luxury
Explanation:
When a product is being purchased irrespective of it price, the manufacturer is said to have found a winning formula.
from the above question, a luxury item that is authentic with an history behind it as well as exccellenct craftsmanship amongst other things ensure that the item is continually sold no matter what price it is.
Cheers.
