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]: Which object works best when reflecting light?  
 (A) mirror (B) camera (C) binoculars (D) eyeglasses
[A]: A


[Q]: In the forest, one type of tree produces special seeds. These seeds start to grow only after going through a fire. In the fire, the adult trees are destroyed. Which resources, needed for growth, are now available to the newly growing seeds?  
 (A) sunlight and wind (B) sunlight and space (C) soil and pollen producers (D) pollen producers and space
[A]: B


[Q]: Which of the following best explains why the pressure inside a high-flying airplane must be controlled?  
 (A) At high altitudes there is greater atmospheric pressure than on the surface of the Earth. (B) At high altitudes there is lower atmospheric pressure than on the surface of the Earth. (C) If the cabin is not pressurized, ozone and other upper atmospheric gases will enter the airplane. (D) If the cabin is not pressurized, carbon dioxide will escape from the airplane.
[A]:
B