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:
If an ecosystem's balance is disturbed by a volcanic eruption, what will most likely occur?  
 (A) The ecosystem will not change from its original state. (B) The ecosystem will eventually become balanced again. (C) The consumers in the ecosystem will begin to consume carbon dioxide. (D) The consumers in the ecosystem will begin to produce more oxygen.

Ex Output:
B


Ex Input:
While Anna was testing a circuit, she dropped a light bulb. What is the safest thing Anna can do?  
 (A) get a new bulb to finish the test (B) push the broken glass under a table (C) tell her teacher that she broke the bulb (D) ask her partner to help pick up the broken glass

Ex Output:
C


Ex Input:
In New England, there are noticeable patterns of seasonal change. Which information could you collect to BEST illustrate this change?  
 (A) air temperature (B) wind speed (C) amount of precipitation (D) number of cloudy days

Ex Output:

A