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.

Example Input: Which object is best used to demonstrate the bending of light as it passes through a substance?
(A) convex lens (B) flat mirror (C) opaque rod (D) concave mirror
Example Output: A

Example Input: In 2004, Maryland recycled more than 35% of all of the waste the state produced. Which of these benefits does recycling provide to Maryland?
(A) fewer wild animals (B) decreased farm crops (C) less trash sent to landfills (D) decreased use of electricity
Example Output: C

Example Input: DNA molecules contain the genetic information that determines the characteristics of a living organism. How do DNA molecules express the genetic information they contain?
(A) by breaking down proteins within the cell (B) by directing the process of protein synthesis (C) by regulating the storage of cellular proteins (D) by controlling the movement of protein molecules
Example Output:
B