Answer:
The Industrial Revolution is the correct answer
Explanation:
Many among the liberals and radicals were property owners and employers. They wanted the benefit of industrialization to reach the workforce. They believed that healthy and educated citizens would be more productive for the economy.
Some liberals and radicals wanted revolutions which could end all kind of governments established in Europe in 1815. Industrialization resulted in a large number of people working in factories. Work hours were usually long and the workers were getting poor wages.