What improvements needed to be made to the telephone before it could be more widely adopted?
A) The number of voices carried on a single wire had to be increased; a government department had to be created to assign phone numbers.
B) The number of voices carried on a single wire had to be increased; the handset had to be made more comfortable.
C) Sound needed to be made easier to hear; the number of voices carried on a single wire had to be increased.
D) Sound needed to be made easier to hear; viewers had to be able to see the number of the person calling on the phone itself.

Question

Quizplus · Accepted Answer

The early telephone required improvements in sound clarity and the ability to carry multiple voices on a single wire to enhance its functionality and adoption.

What Improvements Needed to Be Made to the Telephone Before