The correct option is "Mahatmas Gandhi"
It is important to remember these two great humanists who contributed much for peace and freedom. Their lives had a great parallelism since they were imprisoned for their ideas. Also, discriminated by the color of their skin. Both promoted nonviolence and were killed for their ideas.
It is pertinent to bear in mind that Gandhi was the father of Indian independence from the British Empire and Luther King fought against racial discrimination and for equal rights between blacks and whites in the United States.