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: Living things are classified as producers or consumers according to  
 (A) their speed of movement (B) the size of their communities (C) how they obtain food (D) how they reproduce

Output: C


Input: Consider Input: A shallow container of salt water is placed in sunlight for a day. Which is the most likely result?  
 (A) All of the mixture will evaporate. (B) The salt will keep the water from evaporating. (C) The salt will separate from the water and float at the top of the container. (D) Only the water will evaporate and the salt will remain in the container.

Output: D


Input: Consider Input: A species of wasp lays its eggs in the larva of another insect. The wasp is a parasite, and the larva is the host. What is the relationship between the parasite and the host?  
 (A) Both the parasite and the host benefit. (B) Both the parasite and the host are harmed. (C) The parasite benefits and the host is harmed. (D) The parasite is harmed and the host benefits.


Output: C