Which is called the Battles of mind because ​

The human being use only 20 percent of the total 100 percent capacity of their minds in the whole lifetime. The Mastermind quiz is billed as a “battle of minds'. This battle is fought in two halves.

Explanation:

in "letter from a birmingham jail," king argues that there are four basic steps in any nonviolent campaign: "[c]ollection of the facts to determine whether injustices exist; negotiation; self purification; and direct action." finally, direct action is taken and acts such as boycotts and sit-ins are staged.

a and b are the correct answer to what your looking fior