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.

Example Input: Claudia's teacher places a photograph of an organism on the board. He asks Claudia to determine if the organism is a plant or an animal. The answer to which question will best help Claudia determine if the organism is a plant or an animal?  
 (A) Does the organism have cells? (B) Does the organism reproduce? (C) Does the organism live in the forest? (D) Does the organism make its own food?
Example Output: D

Example Input: In what type of rock would a geologist most likely find evidence of ancient life?  
 (A) sedimentary (B) foliated (C) metamorphic (D) volcanic
Example Output: A

Example Input: Which of these colors of visible light has the shortest wavelength?  
 (A) red (B) green (C) violet (D) yellow
Example Output:
C