I believe the answer is Austria.
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.
In the wake of King's assassination in 1968 riots broke out in more than one hundred cities across the United States as people grieved; James Earl Ray assassinated Martin Luther King Jr. on April 4th 1968, when King had come to Memphis in support of a labor strike.