The correct answer is: "the end of American neutrality in World War II"
The Lend-Lease Act was a program enacted in the US in 1941 to provide support to Allied countries so that they could defeat the axis forces (nazi Germany, fascist Italy and the Japanese Empire) in WWII, but the US had not decided to directly participate in the conflict yet.
The program consisted on the distribution of food, oil, and all types of military materials and it remained functioning since 1941 until the end of the conflict in 1945.
The answer is c. specialized labor. Specialized labor is distributing the labor based on the expertise of the workers. this enabled production to be faster and more efficient which eventually lead to the mass production of goods in a much faster way
Montesquieu's views and studies of governments led to him to believe that government corruption was probable if a system of government didn't include balance of powers. He conceived the idea of separating government authority into the three major branches: executive, legislative and judicial.