which application of a new technology can be attributed to an invention of thomas edison?\na refrigerated…

which application of a new technology can be attributed to an invention of thomas edison?\na refrigerated railroad cars allowed food to be transported long distances.\nb light bulbs made it efficient for factory workers to work at night.\nc diesel engines were used in the production of airplanes.\nd sonar technology was used to track submarines.
Answer
Brief Explanations:
Thomas Edison is well - known for inventing the practical incandescent light bulb. This invention made it efficient for factory workers to work at night as it provided a reliable source of artificial light. Refrigerated railroad cars were not Edison's invention. Diesel engines and sonar technology also have no connection to Edison's work.
Answer:
B. Light bulbs made it efficient for factory workers to work at night.