Edwin Booth greatly contributed to the advancement of theatre technology with the opening of his theatre in 1869. His theatre contained several modern innovations including a modern orchestra pit, stage elevators, and balconies. His theatre also established:

The available options are:

a. The Modern proscenium-arch

b. Raked stages

c. Wing and shutter system

The Modern proscenium-arch

Explanation:

Edwin Booth built a theatre named Booth's Theatre, it is characterized by its several modern innovations including a modern orchestra pit, stage elevators, balconies and THE MODERN PROCENIUM-ARCH.

In the theatre are some functions such as hydraulic rams to raise and lower scenery, and stage lights that could be completely extinguished during the performance.

Some of the other features of the Booth's Theatre are:

1. It has a height of one hundred and twenty feet, with a mansard roof, including three towers.

2. It has a boiler-room with a steam engine for the purpose of heating the theatre through extensive hot-air pipes.

3. It has a  large chandelier, that is lit by gas-jets and ignited by electricity, which is hung above the auditorium.

4.   The deck of the stage had double-floors.

the answer should be monarchy