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: Skunks spray a strong-smelling liquid to ___.
(A) get rid of wastes (B) attract prey (C) defend themselves (D) help nearby plants grow

Answer: C

Question: The number of fish in a lake suddenly increases. How will the increase most likely affect the lake?
(A) There will be less water in the lake. (B) More plants will grow in the lake. (C) More frogs will live in the lake. (D) There will be fewer insects in the lake.

Answer: D

Question: Most hormones are produced by which human organ system?
(A) digestive (B) endocrine (C) respiratory (D) nervous

Answer:
B