How is passini's dialogue different from the narrator's dialogue?

The correct answer is:

Passini varies his syntax and structure.

In Ernest Hemingway's A Farewell to Arms, Lieutenant Henry and other ambulance drivers argue about the war. The driver named Passini is the most philosophically opposed to it. The narrator's use of simple sentences suggests he's practical and modest and reflects his lack of passion for the war even though he accepts it as the only option.

On the other hand, Passini's variation on his syntax and structure shows an opposite position and personality.

B.) Passini varies his syntax and Structure