The correct answer is - C. Thomas Edison.
Thomas Edison is one of the people that managed to make big scientific breakthroughs during his life, and those inventions had become things that significantly improved the lives of the people, as well as giving the basis for the technological development.
One of those inventions is the electric light bulb. As much as a light bulb might seem as a simple thing nowadays, it was a revolutionary invention, as people were able to live in proper light, the factories were able to work all the time, the streets got properly lightened, etc.
