During the Gilded Age, people who worked in factories
a. had only moderate health benefits in case of accidents.
b. had to work long hours.
c. had many opportunities for job promotions.
d. were often taught new skills.

Respuesta :

During the Gilded Age, people who worked in factories "b. had to work long hours," since although this has been heralded as an era of great wealth, there was also a great deal of poverty and hardship.  

Answer:

b. had to work long hours.

Explanation:

The Gilded ages is the period between 1860´s to 1896, this was directly after the civil war, it´s part of the reconstruction process and many americans started moving into the urban areas and working in the factories, usually working 10 hours shifts, 6 days a week for a salary that could barely support a family.