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: What is the name of the product formed from the reaction shown below? 4Fe(III) + 3O_{2} -> 2Fe_{2}O_{3}  
 (A) iron (II) oxide (B) iron (III) oxide (C) oxygen ferrite (D) diferrous trioxide

Output: B


Input: Consider Input: Which group of organisms can make food by a process called chemosynthesis?  
 (A) scavengers (B) producers (C) consumers (D) decomposers

Output: B


Input: Consider Input: Which processes change magma into igneous rock?  
 (A) cooling and crystallization (B) compaction and cementation (C) heat and pressure (D) weathering and erosion


Output: A