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: DNA technology has improved greatly in the last twenty years. Which task has been made easier by the development of DNA technology?  
 (A) identifying genetic disorders (B) determining the parts of an atom (C) observing distant objects in space (D) making very accurate measurements

Answer: A


Question: Research in which of these areas has the greatest impact on the environment?  
 (A) irradiating food (B) organic fertilizers (C) bacteria to clean up oil spills (D) developing larger, sweeter strawberries

Answer: C


Question: A student wants to design an experiment regarding the behavior of crickets. Which is the best question to ask to begin the experiment?  
 (A) Do crickets have 6 legs or 8 legs? (B) How long are the antennae of a cricket? (C) Do crickets chirp more during the day or at night? (D) What is the most common cricket species?

Answer:
C