Your question is incomplete because you have not provided the options. These are:
exhibit grace under pressure.
recognize the meaningless of life.
have a mentor to follow.
learn from his mistakes.
Answer:
exhibit grace under pressure.
Step-by-step explanation:
In "A Farewell to Arms," Ernest Hemingway makes use of simple and straightforward sentences to convey the brutality of war. In this way, he expresses the relaxed and unconcern behavior of the characters, who are going through a harsh time during the war but whose spirits still remain unperturbed.