Answer:
Working conditions
Step-by-step explanation:
Among the various options given, the reforms in US in Nineteenth century brought racical changes in many aspects except that in working conditions of the workers.
This period of reforms in also called as the Second Awakening period in US history. These reform movements focussed on bringing betterment in American society, by the abolition of slavery, educational reforms, prison reform, women's rights, alcohol reforms, treatment of metally ill and handicapped people and the prisoners in jail.