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: Which is a response of the autonomic nervous system that helps maintain equilibrium in the body?
(A) shivering in cold temperatures (B) eating due to appetite (C) slapping at biting insects (D) pulling away from hot objects

Answer: A

Question: Martin is writing a report for science class about how the tilt of Earth affects living organisms. Which subject should Martin include in his report that is directly affected by Earth's tilt?
(A) night and day (B) cloud formation (C) phases of the Moon (D) changing of the seasons

Answer: D

Question: Which of the following statements is true about organisms that are producers?
(A) They use energy from the sun to make food. (B) They absorb energy from a host animal. (C) They get energy from eating living animals. (D) They get energy by breaking down dead plants and animals.

Answer:
A