What sequence describes a situation where one element becomes excessive in relation to another?

The Over-Acting sequence is the correct answer because it describes a situation in Traditional Chinese Medicine where one element contributes to an excess or imbalance that negatively affects another element in the sequence. In this context, it illustrates how an overactive element can cause a deficiency or disharmony in the element it is supposed to support or balance.

For example, if Wood is excessive, it can overact on Earth by obstructing it, leading to issues like digestive problems, since Earth is responsible for transformation and transportation in the body. This concept highlights the interconnectedness of the elements in TCM and emphasizes how one element can exert an undue influence on another, leading to health imbalances.

Other sequences mentioned serve different purposes in TCM. The Reverse sequence typically indicates a condition where elements exert counter-influences, while the Generating sequence describes a supportive relationship where elements nourish and promote each other. The Cosmological sequence is more about the broader principles of the relationship between elements in the context of the universe rather than specific imbalances. Therefore, the distinct nature of the Over-Acting sequence makes it the appropriate choice to address the situation where one element becomes excessive relative to another.