Starting in the Late 1980s, a Large Number of Migrants

Multiple Choice

Starting in the late 1980s, a large number of migrants moved from Mexico to work in a meatpacking plant in Marshalltown, Iowa. Back in Mexico, they experienced deteriorating economic conditions, and the meatpacking plant in the United States was in need of migrant laborers. This pattern of migration can be best understood from

A) push-pull theory.
B) melting pot.
C) migrant network.
D) social capital.