SS-US-M7-C The table below shows the number of legal immigrants to the United States by decade. Legal Immigration to the United States by Decade 1930s 250,000 1950s 2.5 million 1970s 4.5 million 1990s 10 million Which factor most contributed to the changes indicated on the table? Food shortages in Western Europe forced more residents to migrate. Television and the Internet attracted more people. O The United States was unable to secure its borders. O New federal laws permitted more legal immigrants.

SS-US-M7-C The table below shows the number of legal immigrants to the United States by decade. Legal Immigration to the United States by Decade 1930s 250,000 1950s 2.5 million 1970s 4.5 million 1990s 10 million Which factor most contributed to the changes indicated on the table? Food shortages in Western Europe forced more residents to migrate. Television and the Internet attracted more people. O The United States was unable to secure its borders. O New federal laws permitted more legal immigrants.