Which invention was necessary to begin the modern music industry?
A. The streetcar
оо
B. The railroads
O
c. The electric lightbulb
O
D. The phonograph
SUBMIT

D. The phonograph.

Explanation:

The phonograph is the only choice that has to do with music or even sound in general out of all choices given.

Streetcar & railroads have to do with transportation.

Electric lightbulbs have to do with electricity and energy.

~

julius caesar turned the roman republic into the roman empire by coming in and taking the "dictator" role during the time of a civil war (elites vs lower classes) winning battles and reputation, then declaring him dictator for life

hope this : )

b. the 200th birthday of the united states