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: If a student gets a chemical splashed into an eye, what is the most appropriate first action to be taken?  
 (A) wipe it with a paper towel (B) call 911 for emergency services (C) have someone go get the school nurse (D) flush the eye with water at an eyewash station

A: D
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Q: Which of these is the center of our solar system?  
 (A) Mars (B) The moon (C) Jupiter (D) The sun

A: D
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Q: How hot is it on the surface of the Sun?  
 (A) Not quite as hot as boiling water (B) About as hot as fire (C) About 100°F (D) Much hotter than almost anything on Earth

A:
D
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