The correct answer is B) to prevent the Axis Powers to winning the war.
The US abandoned its position of strict neutrality in the late 1930s to prevent the Axis Powers to winning the war.
Congress passed the Lend-Lease Act on March 1941. The Act authorized the US Congress to get the money and send aid to the countries involved in the war. President Franklin D. Roosevelt could decide the countries that should receive the aid in the form of weapons or any other supply. The US abandoned its position of neutrality and in December 1941, after the Pearl Harbor attack, the United States decided to enter the war on the Allies side (Russia, France, and Great Britain). They wanted to defeat the Axis Powers (Germany, Italy, and Japan).