You are given a science question (hard-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: A student shines a flashlight on different colors of paper. Which color of paper will absorb the most light?  
 (A) Red (B) Black (C) White (D) Yellow

A: B
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Q: If an atom of hydrogen gives up one electron, what is its overall charge?  
 (A) -1 (B) +1 (C) -2 (D) +2

A: B
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Q: Which statement about photosynthesis and respiration is true?  
 (A) Photosynthesis stores energy and respiration releases energy. (B) Respiration stores energy and photosynthesis releases energy. (C) Photosynthesis and respiration are the same process. (D) Photosynthesis and respiration do not have anything to do with energy.

A:
A
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