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:
As Earth revolves around the Sun, the number of daylight hours varies from place to place. In which location would the number of daylight hours remain constant?  
 (A) North Pole (B) Prime Meridian (C) Equator (D) Antarctica

Ex Output:
C


Ex Input:
Which of these animals has a young form that looks the most like the adult form?  
 (A) moth (B) human (C) frog (D) butterfly

Ex Output:
B


Ex Input:
Modern technology has had some positive and negative effects on society. Which would be a negative effect of advances in technology?  
 (A) human jobs replaced by more efficient machines (B) decrease in production of solid waste (C) use of alternate sources of energy (D) reduction in habitat destruction

Ex Output:

A