The correct answer is A. Nonviolence is the best way to deal with oppression.
Step-by-step explanation
In the fragment of the acceptance speech of the Nobel Prize, Martin Luther King Jr alludes to his movement of non-violence and how it allowed him to influence the politics and morals of the people. Luther King clarifies that his movement of non-violence is separated from passivity, affirming that non-violence is a way of acting without resorting to revenge, aggression, or retaliation. According to the above, it can be inferred that the central idea of the fragment is A. Nonviolence is the best way to deal with oppression because that was the main idea developed through the fragment.