Which of the following best describes how samuel morse's telegraph revolutionized mass media and communication? a.) the telegraph was the starting point for the science behind modern communication devices like the telephone and fax machine. b.) the telegraph was the first device that allowed information to travel over a distance without being physically transported by a person. c.) the telegraph was the first machine used to broadcast news using sound. d.) the first message sent on the telegraph was transatlantic, proving that a message could be sent over a long distance without a human being needed to transport it.

The answer is D.  

Explanation:

Samuel Morse was the first one to send a telegraphic message on May 24, 1844, while experimenting on a Washington line that went to a Baltimore line. This successful experiment led to the improvement of communication between regions that were far from each other. It was the first time that people could communicate from far distances without a human transporting the information.

the service industry in the united states grew in the late 1800s. what was one effect of that growth?

the number of people with jobs in factories as unskilled workers decreased.

the number of people with jobs in factories as unskilled workers increased.

the middle class grew as people took jobs as clerks, lawyers, and teachers.

the middle class shrank as people left jobs as clerks, lawyers, and teachers.