What event happened when the veteran groups marched in protest on Washington? (1 point)
A. Over twenty thousand protesters set up camps and peacefully occupied empty government buildings.
B. Congress ordered General MacArthur to use federal troops to remove the protesters by using force.
C. Unions were formed and negotiations occurred, ending in the Bonus Army getting all the money they were owed
D. The Bonus Army occupied Washington D.C. and forcefully won all their demands.