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: During which process does a caterpillar become a butterfly?  
 (A) fertilization (B) metamorphosis (C) asexual reproduction (D) biological adaptation

Output: B


Input: Consider Input: Because copper is a metal, it is  
 (A) liquid at room temperature (B) nonreactive with other substances (C) a poor conductor of electricity (D) a good conductor of heat

Output: D


Input: Consider Input: Meteorologists categorize hurricanes based on the Saffir-Simpson scale. The scale measures the intensity and destructive potential of hurricanes. Which factor has the most significant effect on the strength of a hurricane?  
 (A) the initial speed of a hurricane (B) the direction that the hurricane rotates (C) the number of hurricanes that form in a year (D) the temperature of the water below the hurricane


Output: D