Final answer:
Thomas Edison is known for perfecting the incandescent light bulb, not inventing it from scratch. Nikola Tesla, on the other hand, was key in the development of AC electrical systems. The sentence suggesting Tesla invented the bulb needs correction to accurately reflect the contributions of both inventors.
Step-by-step explanation:
While history often credits Thomas Edison with the invention of the lightbulb, his role was more about improving pre-existing technology than inventing it. Edison's work focused on creating a practical and economical electric light that could be used in homes and businesses, which culminated in the patenting of his incandescent light bulb in 1879.
Although Edison is associated with DC current systems, it was Nikola Tesla's developments in AC current for Westinghouse that ultimately transformed the electrical industry and became the standard for power distribution.
To address the sentence combining, the most factually accurate and effectively combined sentence is the first one: "Although history credits Thomas Edison with inventing the lightbulb, Nikola Tesla, a Serbian-American inventor and engineer, was actually the one who invented it.
" Nonetheless, it should be clarified that Edison improved the incandescent light bulb, while Tesla was instrumental in the development and adoption of AC power systems, rather than the invention of the lightbulb itself.