Answer:
A. Development of the factory system
Step-by-step explanation:
The methods of production in factory system replaces Human labors with the use of Machines. Typically, the Machines were faster, can be operated on longer hours, and more cost efficient compared to human labors.
Ever since the industrial revolution in, late 1700s, Factory system started to become the most preferred methods for business owners regardless of the environmental waste that they created.