1. The problem asks to identify the relationship between sunlight amount and plant height based on experimental data. 2. Correlation means two variables change together, but one does not necessarily cause the other. 3. Causation means one variable directly causes the change in the other. 4. The problem states that as sunlight increases, plant height increases, indicating a direct effect. 5. Since the experiment shows that sunlight increase causes plant height increase, this is causation. 6. Correlation alone would mean they change together without proven cause. 7. Therefore, the best description is causation based on the data. Final answer: c Based on the data, this is an example of causation.