Which of these changes during the industrial revolution led to greater efficiency? a) workers received labor rights. eliminate b) major labor unions were formed. c) slavery and other forms of forced labor were eliminated. d) animal & human power were generally replaced with steam power.

D. Animal & human power were generally replaced with steam power.

Explanation:

When animal & human power were generally replaced with steam power, the result was a rapid increase in industrial productivity. The replacement of scarce resources with the relatively abundance resource of water (for steam) had nothing to do with rights of the workers or their ability to organize.