TASK DEFINITION: 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.
PROBLEM: Question: Which of the following statements about consumers is true? (A) They are adapted to use sunlight for photosynthesis. (B) They are organisms that make their own food. (C) They are dependent on producers for energy. (D) They are the only source of energy in an ecosystem.?

SOLUTION: statements, consumers

PROBLEM: Question: Some animals, such as squirrels, may bury acorns. Which of the following is most likely to happen to the acorns after they have been buried? (A) The acorns will be carried away by the wind. (B) The acorns will attach to another organism. (C) The acorns will have a chance to sprout. (D) The acorns will turn into fossils.?

SOLUTION: bury, acorns., happen, buried?

PROBLEM: Question: What do ice, a rock, and a piece of aluminum have in common? (A) They are all solids. (B) They are all liquids. (C) They are all minerals. (D) They are all elements.?

SOLUTION:
aluminum, common?