Respuesta :
The best and most correct answer among the choices provided by your question is the fourth choice.
Sugar is the dependent variable therefore, it is the treatment in the experiment.
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Answer:
The correct answer is sugar.
Explanation:
The sugar mentioned is the treatment in the given experiment. The plain water possesses a freezing point of zero degree Celsius. However, water treated with sugar or sugar water exhibits a lower freezing point in comparison to pure water. The treatment here, that is, the sugar makes lowering or depression of the freezing point of water. Water is the solvent and the sugar is the solute here.
