Which inventor created the telephone?

Alexander G. Bell is recognized for inventing the telephone, a groundbreaking innovation that revolutionized communication in the late 19th century. Bell's development of the telephone in 1876 allowed for the transmission of voice over electrical wires, overcoming the limitations of previous communication technologies. This invention transformed personal and business communication, laying the foundation for the telecommunications industry as we know it today.

Other inventors in the options were influential in their respective fields but did not create the telephone. George Stephenson was a pioneer of the steam locomotive, Thomas Newcomen was known for his early steam engine, and Guglielmo Marconi is credited with the development of radio technology. Each of these inventions played a significant role during the Industrial Revolution but they are unrelated to the telephone's invention.