PLEASE HELP ASAP please provide correct answer. Select the correct answer.
Read the following sentence from "Chapter 1, Radio Boys Cronies."
[11] This motion is transmitted in waves of varying intensity and frequency which are sent into space by the mechanism of the
broadcasting station, which consists of a sound conducting apparatus induced by strong electrical currents from generators or batteries
and extensive aerial or antennas wires high in the air.
Which words serve as the best clue to the meaning of transmitted?
A.
from generators
B.
of varying intensity
C.
sent into space
D.
electrical currents