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:
The molecule ATP is composed of elements commonly found in organic molecules. Which of the following is one of these elements?  
 (A) aluminum (B) calcium (C) phosphorus (D) tin
answer:
C


question:
Patricia and her classmates are visiting different rocky areas in the city. They want to know what kind of rocks can be found in each area. If the investigation is done correctly, what will Patricia and her classmates do each time they visit an area?  
 (A) draw the rock shapes (B) count the rock numbers (C) record the rock types and locations (D) measure the rock masses and lengths
answer:
C


question:
Which statement best describes the effect deforestation has on Earth's atmosphere?  
 (A) The amount of oxygen increases. (B) The amount of methane increases. (C) The amount of water vapor increases. (D) The amount of carbon dioxide increases.
answer:

D