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 forms of energy is released or absorbed in most chemical reactions?      
 (A) light energy (B) electrical energy (C) sound energy (D) heat energy

Ex Output:
D


Ex Input:
Which is the greatest benefit of sexual reproduction?  
 (A) capable of reproducing by meiosis (B) ability to reproduce without a mate (C) ability to produce genetically different offspring (D) capable of producing offspring genetically identical to parent

Ex Output:
C


Ex Input:
The rocks that form most of the Sierra Nevada are granitic rocks. This means that the mountains were most likely formed by  
 (A) strike-slip faults. (B) transform boundaries. (C) volcanic activity. (D) land subsidence.

Ex Output:

C