In this task, you need to answer basic science questions. For each question, several terms are intentionally masked with ***. This masking can cover very few or many of the question words. Clearly, if masked terms are important, the modified question will be impossible to answer. Please indicate the correct answer with one of the following responses: "A", "B", "C", "D" or "E". While "A"-"D" correspond to the answer options provided in the input, "E" represents "I don't know" for questions that do not provide enough information. Respond via "E" if the question is not answerable. Do not generate anything else apart from one of the following characters: 'A', 'B, 'C', 'D', 'E'.

Q: Question: Tyrone put two *** in a plastic bottle of water and shook it. After he stopped shaking the bottle, he observed that small pieces of the *** were floating in the water. What is the best *** he can make based on this observation? If shaking the bottle causes pieces of *** to *** off, ___.  (A) then using cold water will break off more pieces (B) then using hot water will make the stones change colors (C) then shaking for a longer amount of time will break off more pieces (D) then shaking for a shorter amount of time will make the rocks change color.

A: C.
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Q: Question: A student wants to measure the weight of a tomato from her garden. What tool should she use?  (A) balance (B) ruler (C) magnet (D) thermomete.

A: A.
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Q: Question: Which of the following *** about *** and *** is ***?  (A) Only specialized structures require food and oxygen. (B) Every cell requires food and oxygen. (C) Only plant cells require food and oxygen. (D) Cells do not require food and oxygen because they are not living things.

A:
E.
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