TASK DEFINITION: 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.
PROBLEM: Which would most likely be the characteristic of an object with a small volume and large mass?  
 (A) high density (B) low pressure (C) low viscosity (D) high temperature

SOLUTION: A

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

SOLUTION: B

PROBLEM: Students collect pond water in their beakers. Which is the best unit of measurement for the volume of water they collect?  
 (A) Grams (B) Meters (C) Milliliters (D) Centimeters

SOLUTION:
C