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 an example of a form of electrical energy?  
 (A) lightning (B) windmill (C) radio waves (D) sound waves

Answer: A


Question: Which of these warms most of the air, water, and land on Earth?  
 (A) Coal (B) Electricity (C) Sunlight (D) Wind

Answer: C


Question: Repeated pesticide use on an insect population can result in some of the insects becoming resistant to that pesticide over time. Which process is responsible for the pesticides no longer being effective on the insects?  
 (A) divergent evolution (B) natural selection (C) bottleneck effect (D) selective breeding

Answer:
B