Two modules are coupled. How do you tell whether that is a problem?
Answer it out loud before you open anything. The value of the flags below is in comparing them to what you actually said — including whether you named a cost, or only a principle.
The situation behind the question
A reviewer has objected to a pull request on the grounds that it "increases coupling". The change makes the checkout module call a function on the pricing module. The reviewer suggests publishing an event instead.
What it is really testing
Whether the candidate knows that coupling is not one thing and not intrinsically bad. Every useful system is coupled; the question is what kind, in which direction, and whether the two things change together. A candidate who treats all coupling as a defect will replace visible calls with invisible ones and call it an improvement.