On February 6, 1778, Benjamin Franklin was in France signing the Treaty of Amity and Commerce and the Treaty of Alliance. The Treaty of Amity and Commerce recognized the U.S. as an independent nation and promoted trade between France and America.
Congress felt the need for a stronger union and a government powerful enough to defeat Great Britain, so that's why they made The Articles of Confederation.
"a. Immigration restrictions were expanded as fears of communist <span>infiltration from Soviet bloc nations spread" would be the best option from the list, since McCarthy instilled a feeling of paranoia about communism in the US.</span>