The best statement that explains the observations in the table is:
The water molecules of sample 1 are moving faster.
This is because if the drop of food coloring spreads slowly in sample 1, it suggests that the water molecules are moving more slowly, which is typically associated with a lower temperature. Conversely, if it spreads very quickly in sample 2, it indicates that the water molecules are moving faster, which would correspond to a higher temperature. However, since the question is about appearing to spread slowly vs. very quickly, the focus should be on the movement of the water molecules in each sample.