what is the fourth essential step in dr. kings strategic approach to protesting, involving nonviolent…

Brief Explanations:

Dr. King's strategic approach to protesting had four essential steps. The first step was collection of the facts to determine whether injustices exist. The second was negotiation. The third was self - purification (training protesters in non - violent resistance, understanding the cause, etc.). The fourth step was direct action (non - violent protests/marches). The option "non - violent protests" is the fourth step. "self - purification" is the third step, and "negotiation" is the second step.

Answer:

non - violent protests