💡 Detailed Explanation
The man is telling the listener that he has successfully handled or resolved an issue (the matter from the other day) with the client on their behalf. 'Torihakarau' means to manage or arrange things so they go smoothly, often implying fixing a problem. The listener was likely at fault. Therefore, the most appropriate response is to apologize for the trouble caused and express deep gratitude. Option A is too detached and lacks a sense of apology. Option B misunderstands that the action has already been completed.