the time to begin the volume of the cup the temperature of the ice the type of thermometer to use
I gave my students this multiple choice question: A student performed an experiment to see how long it would take for a cup of water to freeze. Which information would another student most likely need in order to perform the same experiment?

Only one answer is correct among these 4 choices:
- the time to begin
- the volume of the cup
- the temperature of the ice
- the type of thermometer to use

Could you tell me which one is correct?

the volume of the cup