Which has the greatest time difference?

The term "extremely inverse" implies a significant and pronounced relationship where the two variables being compared move in opposite directions with a strong correlation. In a statistical or mathematical context, this would suggest that as one variable increases, the other decreases sharply, leading to a greater time difference effect in observations or results compared to the other types of inverses listed.

In contrast, the terms "inverse," "moderately inverse," and "slightly inverse" indicate progressively weaker relationships, where the opposing movement between the two variables exists but is less pronounced. As a result, the time difference is not as significant as in the case of an extremely inverse relationship. This greater magnitude of change in an extremely inverse condition leads to more pronounced discrepancies over time, making it the correct choice for this question.