C)they did not live in cities
D) they did not know how to read
I believe that it would be steam.
C is your Answer:
Workers tried to get improved conditions and wages through labor unions. These unions often started friendly enough, but they soon became organizations for winning improvements by collective bargaining and strikes.
<span>Industrial workers also tried political action. The struggle to win the right to vote and to extend their political power was one of the major factors in the spread of democracy during the 19th century.</span>
Answer: some achievements are creation of mathematics and sewage systems,
Explanation: They are things we use today for example sewage systems are now modernized into more advanced systems.
