A would be the correct answer
It should be noted that casual behavior of the characters during a difficult time demonstrates Hemingway believe that a hero should exhibit grace under pressure.
Because, this casual behavior is not permanent, it is not planned, but with grace, one can overcome the difficulty that caused the behavior.
<h3>What is a Casual behavior?</h3>
Casual behavior can be explained as the behavior that is been exhibited by someone occasionally or not planned.
Learn more about Casual behavior at;
brainly.com/question/25110079
Self interest is probably the answer.
