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: 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: Rivers and streams can carry sediments long distances before they are deposited. What is formed when sediments are deposited at the mouth of a river?  
 (A) a levee (B) a gully (C) a delta (D) a rift


Output: C