The term "Gilded Age" accurately describes the period of the late 1800s because:
c. it was a time when a thin layer of wealth seemed to cover up a great deal of corruption.
This phrase, popularized by Mark Twain and Charles Dudley Warner in their 1873 book "The Gilded Age: A Tale of Today," suggests that while there was significant economic growth and wealth among a small elite, this prosperity masked serious social issues, including income inequality and rampant political corruption.