Question

who changed daily life in the united states by inventing a working light bulb?
george eastman
nikola tesla
george westinghouse
thomas edison

Explanation:

Thomas Edison is widely credited with inventing the practical incandescent light bulb. His work on the light bulb had a profound impact on daily life in the United States (and globally) by providing a reliable and widely - available source of artificial light.
George Eastman is known for his contributions to photography (e.g., the Kodak camera). Nikola Tesla made significant contributions to alternating current (AC) electrical systems. George Westinghouse was also involved in electrical systems, particularly in promoting AC power.

Answer:

Thomas Edison