Detailed Instructions: 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.
Problem:In 1783, Europe was unusually cold and foggy. The rain was acidic. Which event most likely caused the unusual climate in Europe that year?
(A) A logging company deforested millions of acres in South America. (B) A major earthquake and tsunami changed the path of the Gulf Stream. (C) A major volcanic eruption released ash and sulfur gas into the atmosphere. (D) An increase in the use of automobiles released more carbon dioxide into the atmosphere.
Solution:
C