Answer:
B. They participated in sit-ins until they were served at segregated lunch counters.
C. They organized the Montgomery Bus Boycott to protest segregated seating on buses
D. They organized the 1963 March on Washington to call for civil and economic equality.
Explanation:
Just did this question in USATestPrep.
The successful attempt to put the satellite Sputnik into space confirmed the fear of the US citizens that the Soviet Union was capable of potentially placing weapons into space (like missile-technology satellites, etc).
It was the world's longest humanmade structure at more than four thousand miles actually constructed from a series of smaller walls that were connected together built to guard against Mongol invaders.
Hope this helps. :D
