One of the major effects of the Industrial Revolution of the late 19th century in the U.S. was
A. an increased emphasis on worker health and safety issues.
B. an increased emphasis on speed rather than quality of work.
C. an increased emphasis on high-quality, error free work.
D. an increase in the number of small industrial facilities, which could operate more efficiently than larger, more costly industrial plants.
E. a decrease in worker productivity as a result of continuous clashes between unions and management.