The weapon that helped continue the stalemate on battlefields during World War I is option<em> D. Machine Gun</em>. A stalemate is a situation in which neither side has a clear victory over the other. The war becomes very long and slow, and armies have to be creative to surprise the enemy. There were many stalemates in WWI, especially in the Western Front.
It would be the "(C) Creation of a national interstate highway system," that was perhaps the greatest accomplishment of President Eisenhower’s <span>domestic policy, since this greatly reduced travel and trade time while increasing efficiency. </span><span />
A democracy is a form of government ruled by representatives that are elected by the popular vote of the people. The United States is an example of a democracy.
So your answer would be number 2.
Hope this helped. (:
Federalism is a system of government in which the same territory is controlled by two levels of government. Generally, an overarching national government is responsible for broader governance of larger territorial areas, while the smaller subdivisions, states, and cities govern the issues of local concern
He was held in high esteem by the Dunning School of historians, more recent historians rank Johnson among the worst American presidents for his frequent clashes with Congress .. ruthless tactics and so on