Read the excerpt from Hemingway’s A Farewell to Arms. Outside it was getting dark. I asked what time the attack was to be and they said as soon as it was dark. I went back to the drivers. They were sitting in the dugout talking and when I came in they stopped. I gave them each a package of cigarettes, Macedonias, loosely packed cigarettes that spilled tobacco and needed to have the ends twisted before you smoked them. Manera lit his lighter and passed it around.

What about the actions of these men exemplifies them as Hemingway heroes?
They talk about the oncoming attack, clearly with a deep sense of worry for their own safety and the safety of others.
They have not yet lived through a battle and are naive about the imminent danger that awaits them.
They have the bond only men in battle can share, and this is related by the way they partake of the cigarettes.
They act casually and go about regular business, such as smoking, while actually in grave danger.

What exemplifies these men as heroes, as described by Hemingway, is:

D. They act casually and go about regular business, such as smoking, while actually in grave danger.

Explanation:

"A Farewell to Arms" is a novel by author Ernest Hemingway narrated from a first-person perspective. The narrator is Frederic Henry, an American lieutenant who is serving in Italy during the first World War.

This particular excerpt shows how the men are able to keep a cool head even though they know an attack is about to happen. That is what distinguishes heroes from those they protect. While regular people would feel nervous or scared, would run away to escape danger, heroes are able to remain calm. To show that, Hemingway describes how easily they go about regular business, such as smoking, as if danger is not lurking.

because of the type of job he has and because crooks is crippled, he is more permanent than the other men, so he can accumulate personal items without having to worry about how he will carry them with him to the next job.

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