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.

Q: Compared to Earth, the Moon is  
 (A) drier. (B) larger. (C) heavier. (D) brighter.

A: A
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Q: Which of the following best describes a mineral?  
 (A) a solid natural material with a crystal structure (B) a material that was once living but has decayed (C) a liquid chemical used to make soil more fertile (D) a nutrient produced by plants that other organisms need

A: A
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Q: In a lab investigation, students had to identify different mineral specimens. Which property is the most reliable for identifying one mineral from another?  
 (A) texture (B) hardness (C) crystal shape (D) surface color

A:
B
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