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: Carlos was playing on a slide on a sunny summer day. Which property of the slide tells Carlos how much energy the slide absorbed from the Sun?  
 (A) the mass (B) the color (C) the height (D) the temperature

A: D
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Q: All of the following can become fossils except  
 (A) bones. (B) shells. (C) teeth. (D) rocks.

A: D
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Q: A weather balloon is about 2 meters wide when it is near the ground. It grows to about 6 meters wide at higher altitudes. Which change most likely makes the balloon become wider at higher altitudes?  
 (A) More gases enter the balloon. (B) The gas inside the balloon gets much hotter. (C) The air pressure surrounding the balloon decreases. (D) Sunlight breaks down the material of the balloon.

A:
C
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