The correct answer is nonviolent protest. Martin Luther King Jr. and the SCLC believed that using violence in order to bring attention to social injustices would not help African-Americans. Instead, it would allow the media to use these acts as a means to justify why African-Americans shouldn't have equal rights.
Instead, MLK and the SCLC, used peaceful protests such as sit-ins, marches, and pray-ins. These all included African-Americans resisting the urge to resort to violence even if it was used against them during their protest.