Question

26 - c - rusd united states history and geography semester a_90-89776-9823-1330c1
a
which of these inventions arose from an attempt to help hearing-impaired people?
the multiplex telegraph
the telephone
the phonograph
the motion-picture machine

Explanation:

To determine the invention that arose from an attempt to help hearing - impaired people, we analyze each option:

• The multiplex telegraph was mainly for sending multiple messages simultaneously over a single wire, not related to helping the hearing - impaired.
• The telephone: Alexander Graham Bell was working on devices to assist the hearing - impaired (like the harmonic telegraph and other acoustic devices) when he developed the telephone. His work with sound and communication was initially motivated by helping those with hearing difficulties.
• The phonograph was invented for recording and playing back sound, but its initial development was not focused on helping the hearing - impaired.
• The motion - picture machine is for visual entertainment and recording, with no connection to aiding the hearing - impaired.

Answer:

the telephone