"made it more difficult for unskilled workers to obtain U.S. citizenship "
This one is false and is against what the US stands for. The american dream was all about going to the USA and making a good life for yourself.
"granted amnesty to illegal immigrants who had paid U.S. income taxes "
This one is very much wrong, since illegal immigrants have been seen as a problem since always by the american government.
"placed restrictive quotas on immigration from Middle Eastern countries"
This was never the case and there are many Middle Eastern Families that migrated to the U.S.
So we have as the correct answer:
"gave preference to immigrants with family already living in the United States"
Those were not only families that needed to be reunited, but the immigrants who had family also had support when arriving in the country, making them functional members of society in less time
