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: Which of these substances is correctly identified as a mineral?  
 (A) coal (B) quartz (C) granite (D) sandstone

Output: B


Input: Consider Input: Strong winds have the ability to uproot large trees in a wooded area. Which of these organisms would most likely benefit from this change in a habitat?  
 (A) a bee colony that needs a hive (B) a bird that needs to build a nest (C) a squirrel that needs to find shelter (D) a plant that needs sunlight to grow

Output: D


Input: Consider Input: Which of these correctly lists Earth's layers in order from the center to the surface?  
 (A) outer core, inner core, asthenosphere, lithosphere (B) asthenosphere, lithosphere, outer core, inner core (C) inner core, asthenosphere, lithosphere, outer core (D) inner core, outer core, asthenosphere, lithosphere


Output: D