Answer:
In my opinion, I think it's A
Explanation: When authors develop characters, they describe the characters thoughts and emotions, the character's actions, speech, and forming relationships with the other characters. So in this case, A would be the best answer.
The theme of The Count of Monte Cristo is revenge and forgiveness, power and powerlessness. When Dantes is given a life-prison sentence by his enemies, he spends every waking moment planning his revenge