C, The armies used roads to travel quickly. Roads facilitated the movement of armies, people, and goods across plains, deserts and mountains.
The answer is a for u but i am not sure there has to be more explanation for this
<span>Eisenhower Doctrine, (Jan. 5, 1957), in the Cold War period after world War II, U.S. foreign-policy pronouncement by President Dwight
D.Eisenhower promising military or economic aid to any Middle Eastern country needing help in resisting communist aggression.</span>
On October 12, 1492, a sailor looked out from the bow of his sailing ship, the Pinta, to the horizon and saw land. Columbus and his crews saw the New World after ten weeks at sea from the port of Palos, Spain.
Columbus set sail from Spain on August 3, 1492, in search of an all-water route to Asia. More than two months later, on October 12, Columbus landed on an island in the Bahamas he named San Salvador; the natives called it Guanahani.
In the 15th and 16th centuries, Europeans wanted to find sea routes to the Far East. Columbus wanted to find a new route to India, China, Japan and the Spice Islands.
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