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.

Ex Input:
Which of these best describes wind energy?  
 (A) limited (B) renewable (C) damaging (D) inexpensive

Ex Output:
B


Ex Input:
A bright object with a long tail of glowing gases is in orbit around the Sun. This object is most likely  
 (A) a planet (B) a star (C) an asteroid (D) a comet

Ex Output:
D


Ex Input:
The aloe plant can absorb a lot of water during a rain shower. The extra water is stored in its leaves. The ability to store water in its leaves is most likely an adaptation to which type of environment?  
 (A) one near the ocean (B) one with dry conditions (C) one with a variety of organisms (D) one that receives a lot of sunlight

Ex Output:

B