C. New immigrants worked mostly in unskilled jobs.
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The salad bowl concept suggests that the integration of the many different cultures of United States residents combine like a salad, as opposed to the more traditional notion of a cultural melting pot. New York City can be considered as being a "salad bowl".
What was this supposed to say
The Gulf Coastal plain can be divided into five subregions or smaller regions
(All of the above) is the answer
