If the other person tries to avoid conflict when you want to collaborate, you should

Also avoid such situation

Explanation:

In simple words, the ethics lies with the actions of peace. If someone has hurt  you in some way and you want o fight with them in verbal or physical way you should avoid that as much as possible and control your emotions. If the other individual wants to resolve it you too should support them and calmly describe your reason for disappointment and anger.

answer: "the beating heart symbolizes the narrator's conscience, or his sense of guilt and wrongdoing" so its b

explanation:

"to look at him, or hear him describe it, he had no guilt. however, poe decided to symbolize this man's subconscious guilt through the heartbeat."