instruction:
You are given a science question (easy-level) and four answer options (associated with "A", "B", "C", "D"). Your task is to find the correct answer based on scientific facts, knowledge, and reasoning. Do not generate anything else apart from one of the following characters: 'A', 'B, 'C', 'D'. There is only one correct answer for each question.
question:
The energy that is stored in food originally comes from
(A) air (B) soil (C) sunlight (D) water
answer:
C

question:
The molecule ATP is composed of elements commonly found in organic molecules. Which of the following is one of these elements?
(A) aluminum (B) calcium (C) phosphorus (D) tin
answer:
C

question:
Which is a nonrenewable natural resource that is used to make electrical energy?
(A) coal (B) wind (C) water (D) thermal
answer:
A