The correct answer is: A. James Clerk Maxwell.
Maxwell was a Scottish physicist and mathematician who is best known for his work on electromagnetism. He developed the classical theory of electromagnetism, which unified electricity, magnetism, and optics into a single theory. His work laid the foundation for modern physics and technology, including radio, television, and radar.
Faraday was an English physicist and chemist who is best known for his work on electromagnetism. He discovered electromagnetic induction, which is the principle behind the electric generator and transformer. He also discovered diamagnetism and electrolysis.
Oersted was a Danish physicist and chemist who is best known for his discovery of electromagnetism. He found that an electric current can produce a magnetic field. This discovery led to the development of electromagnetism and electricity.
Newton was an English physicist and mathematician who is best known for his laws of motion and universal gravitation. He also developed calculus, which is a branch of mathematics that is used to study change.