The act would restrict immigrants to 2% of their nationality currently living in the United States. The passage continues to inform that more than 50% of the immigrants were from southern and eastern Europe; Greece is in Southeast Europe. The Ellis Island Advisory Committee would not be gravely affected by the 1924 act. Citizens of Great Britain are in northern Europe, so they would have had a greater chance to immigrate. The Lower East Side of New York City is never mentioned in the passage.

The fourth paragraph provides a summation of the other three paragraphs and includes some outcomes of said information, so choice b is the most logical answer. There is no theorizing evident, so choice a is incorrect. No argument or counterpoint is ever addressed, making choices c, d, and e incorrect.