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: *** *** *** *** *** tool *** measure *** volume *** *** rock?  (A) Meter stick (B) Empty graduated cylinder (C) Graduated cylinder with water (D) Triple beam balanc.
[A]: C.


[Q]: Question: *** *** *** primary energy source *** drives all weather events*** including precipitation*** *** *** tornados?  (A) the Sun (B) the Moon (C) Earth's gravity (D) Earth's rotatio.
[A]: A.


[Q]: Question: A class learns about weather. The students in the class measure the outside air temperature at the same time each day. Which way of measuring the temperature would provide the most accurate data?  (A) taking the measurement in the shade (B) placing the thermometer on the ground (C) taking a measurement using a different tool each day (D) recording the measurements from three thermometer.
[A]:
D.