Answer:
Not A
Not B
Not C
Definitely D for the reason that they weren't given all their freedoms that the citizens had. A lot of people opposed immigrants and minorities back then, some still do and it's saddening.
Answer: The Invention of the timer gear on fighter aircraft, the monoplane and more advanced aircraft such as fighter and bombers. the tank, the submarine, the machine gun, the dreadnought, the semi-auto rifle, chemical weapons, and the sub-machine gun. The tank, the submarine, the machine gun, semi-auto rifle, and the sub-machine gun are all still used today.
Explanation:
B) Conquer new territory in Africa and Asia.
Answer: Memorial Day was declared a national holiday in 1971