Answer: D. Justice and forgiveness.
Step-by-step explanation: In the given excerpt we can see one person telling his brother he forgives him for all his faults against him ("...I do forgive Thy rankest fault; all of them..."), he refers to his brother like a "most wicked sir, whom to call brother Would even infect my mouth", which means his brother have done something bad to him, so bad he shouldn't even call him "brother", but despite that he forgives him, demonstrating the themes of justice and forgiveness.