I believe the answer is A) Logging, but I'm not 100% sure.
People used the telegraph to send messages via Morse Code. Which was a variation of taps on a small pad sending electronic pulses that would make a beeping sound. There would be someone on the other end that would listen to the pulses and write them down into words
The answer is B since the treaty of Versailles placed harsh punishments on the Germans which led directly to world war 2
The dynasty that restored unity to China after Shi Huangdi's government crumbled was the Zhou Dynasty
