Which statement best describes how Poe creates mood in the excerpt

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.

your answer is c) experiments with water vapor showed that elements combine in specific proportions.