Which of the following best explains why factories proliferated so rapidly during the Industrial Revolution?

A The labor force became dominated by skilled workers who were needed to operate factory equipment.

B Rapid production of building materials in factories meant that new factories could be built even more quickly.

C Factory workers enjoyed much better living conditions than farmers so new factories arose to meet the demand for factory jobs.

D Many governments began investing in publically owned factories, fueling the rise of government-sponsored manufacturing.