Question

how did this invention change the nature of communication in nineteenth century america? the printing key allowed the presses to be stopped and started as news was breaking. the electric battery provided the basis for the development of the telegraph. the wire feeder helped bring the telegraph to many towns and homes. the telegraph increased the speed of communication for both commerce and news.

Explanation:

The invention shown is the telegraph. Let's analyze each option:

• The first option refers to a printing key (related to printing presses, not telegraph).
• The second option talks about the electric battery's role in developing the telegraph, but the question is about how the invention (telegraph) changed communication, not about the battery's role in its development.
• The third option's "wire feeder" is not a key feature of the telegraph's impact on communication, and the telegraph wasn't brought to many homes in the 19th century in that way.
• The fourth option correctly states that the telegraph increased the speed of communication for commerce and news, which aligns with how the telegraph changed 19th - century American communication.

Answer:

The telegraph increased the speed of communication for both commerce and news.