Answer:
A). “We have wronged each other.”
Step-by-step explanation:
The above statement most likely elaborates Chillingworth's disinterest to seek revenge upon Hester as it clearly reflects that he is aware of each other's mistakes and there's no point in detesting one another. Hester was wrong in running away and having an affair while Chillingworth was delinquent in his approach to destroy Hester's lover. Thus, he knows that they both were wrong which suggests a sense of fairness and justice. And now he doesn't want to instigate her sufferings anymore but rather tries to move on. Therefore, option A is the correct answer.