Considering that the preamble to the constitution states that part of forming a more perfect union is to establish justice, what did martin luther king, jr., mean when he said that "injustice anywhere is a threat to justice everywhere"? a. if even one person is affected by injustice, everyone is affected. b. if one nation treats people equally, then all nations need to treat people equally. c. justice is always reasonable, fair, and impartial. d. justice is only as good as the judges who hear cases.