I do not know what this question is about. But a hot tip: Do not rely on your calculator so much. Enjoy the rest of your day
The answer to number 6 is B. The next one is B. And the next one is A. And A and B
The correct answer for the question that is being presented above is this one: "broadcasting the very first transatlantic radio signal." Marconi expanded on Morse's invention of the telegraph but he also changed media forever by broadcasting the very first transatlantic radio signal. The first successful long-distance wireless telegraph was created by him.