In terms of the Mexican War, many of the opponents knew (and were right) that it was mainly just a war of conquest waged by President Polk for land, and that this land would most likely become slave territory, which many saw as a moral and inherent evil.
The Magna Carta in England was a precursor for modern democracy firstly because It took away total control from the monarchy and dispersed it evenly, furthermore, the Magna Carta began to make the ruler responsible under the law. The correct answer is the second option.
The answer is D, having to fight a two-front war.
The Schlieffen plan was the German strategy to quickly take out France so that they could focus all their troops on Russia.
Chine, China, and Peru are the top three largest copper producing countries.