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.

Input: Consider Input: The fossils of dinosaurs that lived millions of years ago can be found in  
 (A) the water of oceans. (B) the ice on ponds. (C) the trunks of trees. (D) rocks in the ground.

Output: D


Input: Consider Input: Which best describes a scientific theory?  
 (A) It is still being tested. (B) It is true, once written. (C) It is different for each continent. (D) It is determined in a court of law.

Output: A


Input: Consider Input: A strawberry farmer finds that, after a hard freeze, some of his strawberries are still alive. Which best explains why these strawberries were able to survive?  
 (A) They have larger leaves to protect the fruit than the other strawberries. (B) They have different genetic variations that cause them to be more resistant to cold temperatures. (C) They are able to reproduce more quickly than the other strawberries. (D) The color of the strawberries is darker, and they maintain their temperature better than other strawberries.


Output: B