Answer:
She believes that Cassio is being punished because he is honest and virtuous, while Iago is evil and manipulative.
Step-by-step explanation:
Desdemona is correct in her assessment of the situation. Cassio is being punished because he is an honorable man, while Iago is evil and manipulative. Iago has manipulated Othello into believing that Cassio is a danger to him, when in reality, Iago is the one who is dangerous.