Question

1. why were dust bowl migrants often referred to as okies?

most of the first migrants to arrive in california were from oklahoma.
all of the migrants came from oklahoma.
\okie\ was an insulting term that californians made up.
\okie\ was a commonly used slang term for \migrant.\

Explanation:

The term "Okie" originated because the large initial wave of Dust Bowl migrants who moved to California came from Oklahoma. While the term later took on insulting connotations, its core origin is tied to the primary state of origin for the first major group of these migrants. The other options are incorrect: not all migrants were from Oklahoma, the term did not start as an insult, and it was not a general slang for all migrants.

Answer:

Most of the first migrants to arrive in California were from Oklahoma.