So
In Addition
Because
Next
I believe the answer is: A. "I am sorry," he said, and patted me on the shoulder with his good hand. "I would not be rude. My wife has just died. You must forgive me."
The word resign indicates accepting some sort of feeling or situation that cannot be ignored or pushed aside. From the sentences in option A, we can infer that the reader already accept the fact that his wife has died and acknowledge that his emotion is influenced by it.
Atticus knows he probably won't win but he does this anyways to uphold his sense of self-respect and justice
it isnt usual for white lawyers to do their best for 2 reasons i believe:
1) black people are usually convicted so its almost possible to defend them even if they are innocent
2) like a lot of people there were also some racist lawyers