Detailed Instructions: 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:A scientist discovered a way to turn plant material into fuel. This more cleanly burning fuel can be used in cars. How do people most likely benefit from turning plant material into fuel?
(A) Cars are safer to drive. (B) Farmers grow more plants. (C) The amount of air pollution is reduced. (D) The number of cars around the world increases.
Solution:
C