Homesteaders needed to live on their land for at least 5 years.
The answer would be D. Eisenhower
The Allied strategy for winning World War II was they planned to retake North Africa to invade through Italy, invade France from Britain and Germany from the Soviet Union, and then combine forces to defeat Japan.
"C. was overthrown by invading Mongol tribes in A.D. 1279" would be the best phrase describing China's Song Dynasty, but this was of course not always the case.