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.

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.

in the 1950s, country music came into its own before rock-n-roll took off in the 60s while jazz and classical music continued to innovate

i dont know sorry, pay attention in class or use

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