The Telegraph Was Useless as a Means of Communicating Between

Multiple Choice

The telegraph was useless as a means of communicating between ships at sea or between ships and the shore because ______.

A) its signal was too weak to travel across bodies of water
B) the telegraph signal was distorted by the electromagnetic spectrum
C) telegraph equipment was too cumbersome to be used aboard ship
D) the telegraph required a wire cable connecting the sending and receiving stations
E) All of the options are correct.