From Jasmine's experiment with varying amounts of ice added to samples of water, the most reasonable conclusion is that adding ice (which is at a lower temperature) will generally cause the water temperature to decrease. Therefore, the correct conclusion would be:
As ice added increases, the change in water temperature decreases.
This is because adding more ice will continue to lower the temperature of the water.
The other options contain statements that contradict the principles of thermodynamics regarding the relationship between temperature and kinetic energy. Specifically, as temperature decreases, kinetic energy also decreases, not increases.