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: Some birds fly south in the fall and return in the spring. This is an example of  
 (A) migration (B) camouflage (C) hibernation (D) growth

Answer: A


Question: Which is considered a property of soil?  
 (A) streak (B) fracture (C) texture (D) luster

Answer: C


Question: Which list describes the particles that make up an atom?  
 (A) nucleus, electrons, and quarks (B) protons, neutron, and electrons (C) ionic bonds, covalent bonds, and ions (D) nucleus, electron cloud, and energy levels

Answer:
B