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 energy source is considered nonrenewable?  
 (A) moving water (B) fossil fuel (C) wind (D) biomass

Answer: B


Question: Which is the best tool for measuring the temperature of lake water?  
 (A) Meter stick (B) Balance (C) Graduated cylinder (D) Thermometer

Answer: D


Question: Which of these groups contains only metric measurements?  
 (A) inches, grams, ounces (B) inches, pounds, ounces (C) centimeters, grams, milliliters (D) centimeters, pounds, milliliters

Answer:
C