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.
--------
Question: Which of the following was invented by Benjamin Franklin?  
 (A) bifocal lens (B) telescope lens (C) telephone (D) camera

Answer: A


Question: Which of the following happens in our solar system?  
 (A) Earth revolves around the sun once per day. (B) The moon revolves around Earth once per day. (C) Earth revolves around the sun once per year. (D) The moon revolves around Earth once per year.

Answer: C


Question: The average car uses about 25% of the available energy in each gallon of gasoline. The energy not used to run the car is released as heat and sound. Which statement best describes this occurrence?  
 (A) Energy conversion reduces efficiency. (B) Energy is destroyed at high temperatures. (C) Energy loss increases the order in a system. (D) Energy levels increase as conversions take place.

Answer:
A