Secondary; The events are 100 years apart. There is virtually no chance of it being primary.
After the Vietnam War ended, immigration by Vietnamese refugees skyrocketed. Also, American soldiers began bringing home Laotian brides from the country of Laos, called Hmong. This is why the United States has a large Hmong population in the Midwest.
It is true hpe this helps
The answer would be C. 27 million
B is right answer born in us you are citizens