The answer is
D) The European middle class contributing to the Age of Exploration!
The correct answer is option A. "the Soviet Union built them too". The nuclear arms race took place during Cold War, and was a competition for supremacy in nuclear warfare between the United States and the Soviet Union. Under this competition if the United States built hydrogen bombs, the Soviet Union would built them too in order to stay in line with his competitor.
Answer:Caused a lack of materials from the east
Explanation:Anaconda plan, military strategy proposed by Union General Winfield Scott early in the American Civil War. The plan called for a naval blockade of the Confederate littoral, a thrust down the Mississippi, and the strangulation of the South by Union land and naval forces. This, intern lead to a lack of supplies for Texas from the east.
The answer is B (Abraham Lincoln).