The correct answer is B. Arizona and California.
Step-by-step explanation
The 1930 Dust Bowl was an ecological disaster that occurred from 1932 to 1939, in which drought affected the western plains and prairies of the United States. This phenomenon originated from the drought of the soil that was lifted by the action of the wind, forming large clouds of dust and sand that caused large population displacements. During this period, many of the "Okie" communities had to seek work in the southwestern states of the country, mainly Arizona and California. So the correct answer is B. Arizona and California.