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 the following helps the body to cool down?  
 (A) shivering (B) sweating (C) running a fever (D) taking deep breaths

Ex Output:
B


Ex Input:
Florida has a large supply of phosphate that ancient seas deposited millions of years ago. The phosphate contains the remains of animals that were deposited in layers on the sea floor. Which type of rock did the phosphate become?  
 (A) intrusive igneous (B) extrusive igneous (C) clastic sedimentary (D) organic sedimentary

Ex Output:
D


Ex Input:
The Sun heats the atmosphere of Earth unevenly. Which of the following is the most likely result of this uneven heating?  
 (A) Convection in the atmosphere causes a change in air density, resulting in winds. (B) Conduction through the atmosphere causes evaporation to occur over oceans, resulting in rain. (C) Radiation from the Sun will reflect through the atmosphere back into space resulting in cooler evenings. (D) Radiation from the Sun will cause atmospheric moisture to collect over mountain ranges resulting in snowfall.

Ex Output:

A