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.