Answer:
Source B reveals that workers in factories were required to work long hours, often up to 12-14 hours a day or more. Source C reveals that factory life was often tedious and dangerous with unsanitary working conditions and inadequate pay.
The main reason for using child labor in factories was due to the low cost and flexibility of employing children, as well as the lack of unions and laws to protect them. The effects of factory work on women included a reduction in wages, an increase in unhealthy working conditions, and physical exhaustion from long hours of labor.