Final answer:
The large East Asian population in California after World War II was a result of immigration, particularly from Korea and Vietnam. Many Vietnamese immigrants were political refugees seeking asylum. The Refugee Act of 1980 aided their settlement in the United States.
Step-by-step explanation:
The large East Asian population in California is a result of the immigration of Asian immigrants after World War II. Many Asian immigrants, including Koreans and Vietnamese, came to the United States during the second half of the twentieth century.
Vietnamese immigrants, in particular, came as political refugees seeking asylum from harsh conditions in their homeland. The Refugee Act of 1980 helped them settle in the United States.