Study this graph showing the sources of immigration to the United States. A line graph titled Major Sending Regions shows years on the x-axis and number of immigrants (thousands) on the y-axis. The x-axis is labeled 1820 to 2012. The y-axis is labeled 0 to 1,800. The regions are labeled Northern and Western Europe, Southern and Eastern Europe, Western Europe, and Asia and Latin America. the highest peak of immigration is 1990. The lowest amount of immigration was 1930 to 1940. 1820 to 1880 is labeled Westward Expansion. Progressive Era is labeled 1880 to around 1920. Immigration pause is labeled from around 1920 to 1970. Post-1965 Immigration is labeled 1970 to 2012. What conclusions can be drawn from the information in the graph? Select two options.