You are given a science question (hard-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: Cells take in food for energy. The part of the cell that aids in digestion of the food is the lysosome. What is the main role of lysosomes in the process of food digestion?  
 (A) building proteins (B) breaking down wastes (C) controlling the activities of the cell (D) converting energy from one form into another

Output: B


Input: Consider Input: If a child scrapes his foot on a piece of rusty metal, it is important to get medical treatment because the  
 (A) metal is corrosive to the skin. (B) foot carries large amounts of bacteria. (C) foot is the most sensitive part of the body. (D) metal may be contaminated and cause infection.

Output: D


Input: Consider Input: A baby horse will inherit all of these traits from its parents except  
 (A) height. (B) weight. (C) coat color. (D) preferred food.


Output: D