The author suggests that terrorism will end because the activities have alienated people.
<h3>Terrorism</h3>
The unlawful use of violence by a person or group of persons against civilians because of their own personal gain or agenda.
<h3>What does the author suggest?</h3>
The author says that by doing such crimes against humanity, these acts have started their own fall because they have isolated/ alienated people from each other. Therefore the answer is that these activities will end because of the isolation of people.
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Your answer would be D.) swam
Because 'climbed' is past tense and has no adverb (had, in this case), the correct conjugation of swim should be swam.
Hope this helps!
<span>A unchangeable. hope it helps</span>