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: An Earth Science class is planning a field trip to a quarry to look for fossils. Which item will be important for the students to wear during the field trip to prevent damage from solar radiation?  
 (A) disinfectant (B) suntan lotion (C) safety goggles (D) ear protectors

Output: B


Input: Consider Input: Scientists have discovered fossils of the same organisms in many different parts of the world. These fossils provide evidence that  
 (A) the continents were once joined together (B) most life-forms that existed in the past are still present today (C) most of Earth's surface was once covered by molten rock (D) rocks have been transformed from one type to another

Output: A


Input: Consider Input: Deer are introduced into a grassland ecosystem and their population increases considerably. If the deer population continues to grow, which is the most likely outcome for the ecosystem?  
 (A) Biodiversity would decrease, and sustainability would decrease. (B) Biodiversity would decrease, and sustainability would increase. (C) Biodiversity would increase, and sustainability would increase. (D) Biodiversity would increase, and sustainability would decrease.


Output: A