To make the water temperature decrease to below 0°C, Evan should focus on increasing the transfer of heat energy from the water to a cooler object or environment. The most effective option from the provided choices would be:
C. Evan should put the bin in an area that is lower than 0°C, so all of the heat energy from the water can be transferred to the surrounding air.
This option emphasizes the heat transfer process. When the water is placed in a colder environment, the thermal energy moves from the warmer water to the cooler surrounding air, causing the water temperature to drop.