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.

[Q]: Energy appears in many forms. What form of energy is lightning?  
 (A) electrical energy (B) mechanical energy (C) magnetic energy (D) sound energy
[A]: A


[Q]: Martin is writing a report for science class about how the tilt of Earth affects living organisms. Which subject should Martin include in his report that is directly affected by Earth's tilt?  
 (A) night and day (B) cloud formation (C) phases of the Moon (D) changing of the seasons
[A]: D


[Q]: At one station in a production line, a worker must drill a hole in each end of wooden boards. At the next station, another worker attaches two of the boards together using metal fasteners that fit in the holes. Which of the following processes will ensure that the wooden boards fit together with the fewest errors?  
 (A) placing the parts on a conveyor belt to keep them moving quickly (B) using a fixture to hold the boards in place as the holes are drilled (C) inspecting the boards after they are attached to each other (D) installing equipment to protect workers from debris
[A]:
B