Answer: Despite the danger and difficulties, the dwarves set out on their quest to recover the hoard, based on their sense of honor.
Step-by-step explanation:
The question is about an example of the effect that dwarvish culture has on the story. As shown in the answer, the dwarves have a strong sense of honor and what drives them to act is their moral duty to recover the hoard. If it weren't for this sense of honor they have, they probably wouldn't have ever gone on this quest and they wouldn't have been a part of the story. This sense of honor and responsibility for their group and belongings will be a constant of the story.
All the other answers indicate specific situations and moments when the dwarves reacted, but they do not suggest the way in which the dwarvish culture has impacted the story.