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: At camp, Raj sees a lightning storm. He sees the lightning before he hears the thunder. What does this show?
(A) Light moves faster than sound (B) Light moves slower than sound (C) Light and sound move at the same speed
Output:
A