Athenians ostracized the citizens that would endanger the city or the community or if the person ostracized was a tyrant. Being ostracized meant being banished from the city for a time period that they would decide. Sometime for a few years, sometime for life.
D) <span>John Brown, an extreme abolitionist, tried to end the entire institution of slavery by attacking a federal armory in hopes to arm slaves in 1859—the raid failed.</span>
The correct answer is <span>Both misjudged European power.
They believed that because a few other Asian colonies managed to chase off the European powers with relative ease that they would be able to do that as well. However, this didn't happen as we know and the struggle for independence turned into a series of wars, both international and civil, with many issues still being felt today.</span>
<span>they were dangerous and could cause harm to both the target and user
</span>