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.

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


[Q]: Prolonged exercise stimulates muscle cells to absorb sugar from the blood. This mechanism reduces stress placed on the body by signaling the body to produce  
 (A) insulin. (B) lipids. (C) hemoglobin. (D) hydrochloric acid.
[A]: A


[Q]: Which of these is directly formed as a result of weathering and erosion?  
 (A) crystals (B) sediments (C) igneous rocks (D) metamorphic rocks
[A]:
B