The correct answer is displacement.
According to Dollard et al.'s frustration-aggression hypothesis, aggression is caused by and followed by feelings of frustration or anger. In terms of this hypothesis, displacement refers to the phenomenon where frustration causes individuals to direct their aggression on to something or someone who has nothing to do with the actual cause or source of the person's frustration.
The word from the selection that shows a triumphant tone is prevail.
The young people help bring about reforms in eastern Europe because they stopped supporting communist governments.
<h3>What do you mean by reforms?</h3>
A reform movement refers to the type of social movement that particularly aims to bring changes in the community.
Reforms in eastern Europe spread rapidly just because most people in these countries supported democratization. They stopped supporting communist governments.
Therefore, B is the correct option.
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Democracy is better. You have more rights and privileges.