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'.

[EX Q]: Question: *** *** *** *** *** *** *** *** ***?  (A) food and electricity (B) air, food, and shelter (C) water, food, and clothes (D) food, water, and ai.
[EX A]: E.

[EX Q]: Question: Samuel investigated the effect of temperature on the growth of snapdragons. He recorded the results from the *** and found that snapdragons do *** *** well in low temperatures. What is the *** of this *** in the *** process?  (A) It helps to organize the data. (B) It helps to evaluate the hypothesis. (C) It helps to prepare for an investigation. (D) It helps to collect information from observations.
[EX A]: E.

[EX Q]: Question: What effect does a *** have on the *** chain?  (A) It makes energy for the food chain. (B) It recycles material in the food chain. (C) It eats food in the food chain. (D) It stops the food chain from working.
[EX A]:
E.