At what point should all of the Product's UX work be 'done'? (choose the best answer)

At what point should all of the Product’s UX work be ‘done’? (choose the best answer)

At what point should all of the Product’s UX work be ‘done’? (choose the best answer)
A . When the Designer has wireframes that are clear enough for the developers to begin their work.
B. The Product Owner defines an expected completion date for the UX work.
C. By the end of the first Product release.
D. UX work is emergent. As long as the Product exists, UX work is never ‘done’.

Answer: D

Explanation:

UX falls into the complex domain where the outcomes can only be known in hindsight. UX work is continuous work that occurs throughout the lifespan of the product.