The navigator who wanted to reach Asia by sailing west from Europe was "Christopher Columbus," since it was unknown at this time that the land that would soon be known as the New World lay in the way.
C because it the right answer
When the British intercepted the Zimmerman telegram, they realized Germany was offering a diplomatic proposal for Mexico to become their ally during World War I in case the United States were ever to take up arms against the Germans. However, this outraged the American public including the president at the time which was Woodrow Wilson, and this led to speeding up of American armament and the declaration of war on Germany.
The main reason why the African-American students in Greensboro, North Carolina staged a sit-in in 1960 was that they were racial discriminately denied a service in the restaurant there. Therefore, in an attempt to desegregate the South, they protested peacefully to the opposition by staging a "sit-in."