You are given a science question (hard-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.

Input: Consider Input: A town in northern Arkansas experienced colder than normal temperatures during part of the winter. Which change was most likely responsible for this?  
 (A) A southward dip in the jet stream (B) A northward movement of the jet stream (C) The Coriolis effect creating a low pressure area (D) The Coriolis effect creating a high pressure area

Output: A


Input: Consider Input: Which of the following Earth layers has the greatest density?  
 (A) crust (B) mantle (C) inner core (D) outer core

Output: C


Input: Consider Input: Some plant species and animal species depend on each other. Which of these animals help thousands of plant species to reproduce?  
 (A) squirrels (B) earthworms (C) honeybees (D) beetles


Output: C