Final answer:
The technological developments of the 1800s described in the excerpt are most similar to the rise of the middle class due to more efficient production and increased ability to buy goods.
Step-by-step explanation:
The technological developments of the 1800s described in the excerpt are most similar to the rise of the middle class due to more efficient production and increased ability to buy goods. During the Industrial Revolution, advancements in machinery and production techniques led to increased efficiency and lower costs, which in turn allowed more people to afford factory-made products. This rise in the middle class was a direct result of the technological developments during that time.