Bacteria grew in the ice cream. Heat was added to the ice cream. Water evaporated from the ice cream. Frozen berries were sprinkled on the ice cream.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Ice cream in a bowl changed from solid to liquid in a few minutes. Which of the following most likely caused this change?
Possibilities:
- Bacteria grew in the ice cream.
- Heat was added to the ice cream.
- Water evaporated from the ice cream.
- Frozen berries were sprinkled on the ice cream.

Heat was added to the ice cream.