Released early from what?
According to Google, Machu Picchu was built around 1450, and was abandoned around 100 years later in 1572 as a belated result of the Spanish Conquest.
Answer:
d. Downward mobility
Explanation:
Downward mobility is to move to a lower social level because people have a decrease in income or wealth and lose status or job. So, in the recession when people lost their jobs and their houses and quit spending money, they experienced downward mobility.