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 is a way the agricultural biotechnology industry could have a positive impact on the environment?
(A) by producing crops that are virus resistant (B) by making robots to replace large farm machines (C) by reducing the need for countries to import food (D) by increasing the use of wind farms that produce electricity
Example Output: C

Example Input: Which of these shows the correct order for the central dogma of molecular biology?
(A) DNA to protein to RNA (B) RNA to DNA to protein (C) protein to DNA to RNA (D) DNA to RNA to protein
Example Output: D

Example Input: A group of scientists is studying the effect of cell phone signals on honeybees. Before starting the investigation, the scientists stated that the bees exposed to cell phone signals will have difficulty finding their way back to the hive. Which term best describes the statement made by the group of scientists?
(A) control (B) data (C) hypothesis (D) variable
Example Output:
C