You are answering a USMLE-style medical question. Question: A 26-year-old woman comes to the physician for a follow-up vaccination 1 week after being bitten by a rodent while camping. She received appropriate post-exposure prophylaxis in the emergency department and has already received 2 doses of the rabies vaccine. The same physician has been managing the post-exposure care regimen. After the physician administers the third dose of the rabies vaccine, the patient asks him if he would like to join her for a movie and dinner. The physician is interested in going on a date with her. Which of the following is the most appropriate reaction for the physician to have to the patient's invitation? Options: A) Inform the patient that romantic relationships with current patients are unethical. B) Inform the patient that he will go on a date with her because her case is uncomplicated and does not require decision-making on his part. C) Inform the patient that dating her will never be appropriate even once the physician-patient relationship has been terminated. D) Inform the patient that he will go on a date with her, but that she will have to transfer her care to a different physician. Reply with ONLY the letter of the correct answer (A, B, C, or D). No explanation.