Was the Boston massacre a massacre?

Which of the following is an example of an iron triangle?

The case of brown v. board of education was started when a. oliver brown's daughter had to walk 21 blocks to the nearest school when an all-white school was only 7 blocks away. b. oliver brown's son was caught at a sit-in at the local school district. c. oliver brown's son was unable to participate in the school's all-white football team. d. oliver brown's daughter was unable to attend high school because there were none for her to attend.

Select all that apply. the reasons some governments fail are: the policies of leaders hurt the people leaders fail to recognize change they don’t restrict freedom enough leaders stay up on the times and change they don’t protect individual freedoms