Please choose the correct answer to the question: Ice cream in a bowl changed from solid to liquid in a few minutes. Which of the following most likely caused this change?

Answer1: Bacteria grew in the ice cream. Answer2: Heat was added to the ice cream. Answer3: Water evaporated from the ice cream. Answer4: Frozen berries were sprinkled on the ice cream.

Answer format: answer1/answer2/answer3/answer4
Answer: answer2