Pretty sure the answer is C
South Korea is a democratic country - option d. (the potentially hostile neighbor is North Korea, which is both totalitarian and communist/socialist; but South Korea is not any of those).
Franklin roosevelt served two terms yes. true
For one, the Allies had an EXTREMELY massive amount of production, which the German's desperately lacked around the end of Operation Barbarossa in the East.
Also, relating to production, the German's air force (The Luftwaffe) and Naval forces were essentially non-existent by the time the Americans landed in Sicily, but the Allies had a surplus of air assets (specifically bombers and Airborne infantry) which solidified an Allied victory in Europe.
The legislative branch has the power to approve Presidential nominations, control the budget, and can impeach the President and remove him or her from office.