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:
Some kinds of fish live most of their lives in salt water but lay their eggs in freshwater. Their ability to survive in different environments is an example of  
 (A) adaptation (B) developmental stages (C) a habit (D) selective breeding

Ex Output:
A


Ex Input:
A student counts ants in an ant colony every day at the same time. The student writes the date of observation in one column in a notebook and the number of ants counted on each date in a second column. Which best describes how the student arranged the information?  
 (A) pie chart (B) data table (C) bar graph (D) scatterplot

Ex Output:
B


Ex Input:
Which of the following is a direct result of Earth's tilt on its axis?  
 (A) tides (B) seasons (C) weather (D) gravity

Ex Output:

B