Read the paragraph from a history essay:
During the nineteenth century, the expansion of the telegraph system revolutionized long-distance communication in North America. Prior to the telegraph, news traveled by horseback or boat, taking weeks to cross the continent. By sending electrical impulses over copper wires using Morse code, messages could span thousands of miles in seconds, fundamentally transforming journalism, business, and government operations.
What is the main purpose of this paragraph?
- ATo explain how the telegraph dramatically accelerated communication and transformed socie…
- BTo convince readers that horseback delivery is more reliable than electrical wiring.
- CTo provide instructions on how to build a Morse code transmitter at home.
- DTo describe the decline of newspaper journalism in the nineteenth century.