Explanation:

- Forgiveness, not revenge, is the key to happiness and peace.

- Forgiveness involves letting go of anger and resentment.

- Promotes inner peace and harmony in relationships.

- Appropriate for the context of happiness and peace.

- Correct Answer

- Arrogance, not revenge, is the key to happiness and peace.

- Involves an inflated sense of self-worth.

- Often leads to conflicts rather than peace.

- Doesn’t fit contextually.

- Pride, not revenge, is the key to happiness and peace.

- Feeling of satisfaction derived from one's achievements.

- Can sometimes result in vanity and discord, conflicting with peace.

- Humility, not revenge, is the key to happiness and peace.

- Involves being humble and having respect for others.

- Positive trait but not directly addressing the act of letting go of revenge.