Which of the following best identifies the central idea of this text?
a.
america became more of a melting pot as people embraced their differences from one another and celebrated their heritage.
b.
america has struggled with its identity as a melting pot due to cultural differences and anti-immigration policies.
c.
america fails to be a melting pot because people who do not learn english cannot integrate with american citizens.
d.
america is not a melting pot because many immigrants never considered themselves american, but only wanted to go to america for a time to make money.