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 tool would be best to use for counting the number of legs on an ant?  
 (A) ruler (B) hand lens (C) calculator (D) microscope

Output: B


Input: Consider Input: Which of the following is the main role of flowers found on most flowering plants?  
 (A) to take in air (B) to produce seeds (C) to absorb nutrients (D) to protect the stem

Output: B


Input: Consider Input: Which of the statements is the most accurate in describing the chemical equation shown below? 2H_{2}(g) + O_{2}(g) -> 2H_{2}O(g) + energy  
 (A) A solid is produced. (B) Energy is released. (C) Energy is absorbed. (D) Equal numbers of molecules are on both sides of the arrow.


Output: B