What are the inhabitants of Circle 8 primarily guilty of?

In Dante's "Inferno," Circle 8 of Hell, also known as Malebolge, is dedicated to punishing those guilty of fraud. This circle is divided into ten different sections, each designated for specific types of fraudulent behavior, such as false prophets, seducers, and hypocrites. The punishment in this circle reflects the deceitful nature of the inhabitants' sins, and the severity of their deception is mirrored in the complex and treacherous structure of Malebolge itself.

The focus on fraud in this circle highlights Dante's view of deceit as one of the more serious moral failings because it corrupts the trust between individuals and undermines the very fabric of society. As opposed to acts of violence, pride, or heretical beliefs—each associated with different circles of Hell—fraud corresponds specifically to the manipulative actions and selfish choices that betray the trust and virtue expected in human relationships. Therefore, the inhabitants of Circle 8 are primarily guilty of fraud, making this answer correct.