TASK DEFINITION: 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.
PROBLEM: Which item is designed to change electrical energy into heat energy?  
 (A) Alarm clock (B) Hand dryer (C) Fan (D) Telephone

SOLUTION: B

PROBLEM: Sam looks into a fish pond and points at a goldfish. Sam's grandfather looks where Sam is pointing and tells Sam that the fish is actually in a different location. Which property of light explains why Sam's grandfather is correct?  
 (A) reflection (B) refraction (C) diffraction (D) absorption

SOLUTION: B

PROBLEM: In 2004 the Hubble space telescope captured images of distant star clusters, each containing about a million stars. These star clusters were most likely part of which structure?  
 (A) a black hole (B) a galaxy (C) a nebula (D) a solar system

SOLUTION:
B