<u>The correct answer is "It shows similarities with Stalin's Great Purge and reveals how dictators use fear to control people".</u>
Stalin used diverse tactics to deceit the people and gain control over his image. Once he got to a position of perceived power, he used the secret police in the same way that Napoleon uses his dogs: to quiet down the opposition with the use of force and fear-spreading. <u>Public displays of violence as a form of punishment result in a society controlled by fear, where everyone behaves according to the imposition of a tyrant or dictator</u>.
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Something isn't in the right order, because the paragraph isn't well organized I don't know where the answer choices are supposed to be located.
B. It has all compound sentences.
The fragment that is made up of a complete predicate is option A. "could not be heard above the voices in the hallway"
In grammar, the predicate is defined as the part of the sentence that contains the verb and gives information about the subject.
Option A is the only option that contains a verb, in this case "could" and it is providing information about a subject we don´t know. The only options lack verbs,
c. she sometimes disobeys her parents' rules