I'm no psychologist, but I'd say the answer is B, as that's pretty much the stereotype given to people with mental illnesses.
Answer:
A genre of literature that is fictional but based off of history and historical events.
The answer is: They indicate that Passini feels passionately about his beliefs.
From the dialogue between Passini and Tenente, readers can infer that Passini took a more realistic view on the current warring state compared to Tenente's naive outlook.
We can know a character is passionate about a certain belief if that character took his/her time to fully explain the reasoning behind the belief to someone who initially resist the idea. This is what Passini did to Tenente after Tenente conveys that he believed that there would be an end to the war.
