instruction:
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.
question:
One role of a producer in a food chain is to provide  
 (A) water for plants (B) sunlight for plants (C) nutrients for animals (D) shelter for animals
answer:
C


question:
During which season of the year would a rabbit's fur be thickest?  
 (A) fall (B) spring (C) summer (D) winter
answer:
D


question:
When electricity is used to run appliances in a building, the electricity is measured in kilowatt-hours. Which of these units could be used in place of "kilowatt-hour"?  
 (A) joule (B) newton (C) specific heat (D) thermal expansion
answer:

A