PSM I question: Product Backlog item considered complete

Hi everybody,

One question about Scrum framework.

The question is from PSM I.

When is a Product Backlog item considered complete?

A) The item has no work remaining that must still be done before it can be used by its end user.

B) When QA reports that it passes all acceptance criteria.

C) At the end of the Sprint

D) When all work in the Sprint Backlog that is related to it is complete.

I think the correct answer is A) but I think it could be also D)


Thank you in advance.