Answer and Explanation:
1. Revenge is a feeling created out of a grotesque and disadvantageous situation. This fits Ximbardo's argument about why good people do bad things, because he said that it is grotesque and environmentally bad situations that promote the evil of human beings. So we can conclude that revenge is the result of an evil and disadvantageous environment that makes good people want to cause harm to other people who have hurt them in some way.
2. These two texts can contribute to Zimbardo's research, as they reinforce the idea that something must happen in order for human evil to be expressed. In addition, they reinforce the idea that the human being is evil by nature, but they need a trigger for this evil to be "justified".
The Outsiders are about a journal entry that the main character Ponyboy is writing for his English Homework. He is part of the group called the Greasers. Another group are the Socs and they are enemies. One day Ponyboy and his friend Johnny find themselves in trouble with the Socs. While they are fighting, Johnny takes out his knife and stabs Bob, fatally killing him. They run away to an abandoned church, where they stay a couple of days. Soon, Dally picks them up and they see that the church is up in flames and some kids are trapped in there. They go rescue them but a giant piece of wood falls on Johnny and is sent to the hospital. The rest of the gang is there and Johnny is charged for killing Bob. Because of the Socs and the Greasers have a fight. The Greasers win. Unfortunately, Johnny dies in the hospital and Dally robs a store because of this. As he is running with the merchandise, he is hot by the police. The story ends just how it started as Ponyboy is writing his journal entry about these vents.
Since the very beginning of the sentence, the phrase <em>last night</em> indicates that the action in the sentence was performed in the past. In other words, the action described in the sentence has already happened. For this reason, the verb that completes the sentence with the appropiate verb tense has to be a verb in past tense. Thus, the correct answer is revised, which is the only verb from the list that is in past tense.