You are given an elementary science question along with a few answer options. List all the words from the question that are essential and sufficient for choosing the correct answer option. Keep in mind that essential words are necessary to understand the meaning of the given question. However, non-essential words provide little information needed to select the correct answer. You can think about it like this: If the question was in another language, knowing the meaning of which words were necessary and enough for you to understand the question and answer it?. If your answer consists of multiple spans of words from the question, separate those using a comma (", "). Do not generate any word that is not present in the question. Make sure that your response is contained in the given question and the words are in the same order as the question.
 Grammatical correctness is not important.

[Q]: Question: The ice cubes in a freezer are melting. Which change most likely is causing the ice cubes to melt? (A) a decrease in the mass of the ice cubes (B) an increase in the mass of the ice cubes (C) a decrease in the temperature inside the freezer (D) an increase in the temperature inside the freezer?
[A]: ice, cubes, freezer, melting., change, causing, ice, cubes, melt?


[Q]: Question: Ten people became sick with the flu after attending a school dance. What is the scenario that could best explain how the people got sick?
[A]: sick, flu, dance., explain, got, sick?


[Q]: Question: Which of the following is a characteristic of all chemical changes? (A) A different state of matter is produced. (B) Some mass is converted to energy. (C) Some form of light is given off. (D) A new material is formed.?
[A]:
characteristic, chemical, changes?


