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:
How do plants get water and minerals?  
 (A) absorbed from the soil though the roots (B) absorbed from the soil through the stem (C) absorbed from the air through the flowers (D) absorbed from the air through the leaves

Ex Output:
A


Ex Input:
When a cup of water at room temperature is put in a freezer, the water's state of matter will change from  
 (A) liquid to gas (B) gas to liquid (C) liquid to solid (D) solid to liquid

Ex Output:
C


Ex Input:
A scientist is comparing two body cells of a multicellular organism. Which of the following is most likely identical?  
 (A) shape of cell walls (B) number of mitochondria (C) shape of cell membranes (D) number of chromosomes

Ex Output:

D