Instructions: 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.
Input: Mounds and ridges in the Snake Range area of Nevada are composed of boulders, sand, and gravel. These landforms were most likely formed by
(A) earthquakes. (B) melting glaciers. (C) wind erosion. (D) hurricanes.
Output:
B