The correct answer is: "America passes the Neutrality Acts of<u> 1935, 1936, 1937, and 1939</u> which put restrictions on Americans during war".
The Neutrality Acts were enacted in the 1930s decade to limit the participation of the US in future wars, after its participation on WWI, which had brought an intense feeling of disillusionment.
Such acts banned trade and financial operations with belligerents, as it was believed that economic operations with the allied powers had pushed the US into WWI, and the US government aimed to prevent the same mistakes again.