En Route to the Hospital, Your Patient Says, "You Know

En route to the hospital, your patient says, "You know, I haven't had a date since my spouse died six years ago. Why don't you take down my phone number and call me?" Which of the following is an appropriate response?

A) "I'm sure you understand my situation. I'm here to provide you with medical care and transportation to the hospital. It isn't proper for me to have anything but a professional relationship with you."
B) "That is an inappropriate request, and I expect that you'll not make any further suggestions that we might become personally involved."
C) "It isn't that I don't find you attractive; I certainly do, but it isn't proper for me to have a personal relationship with a patient."
D) "I can't call you because of professional ethics, but my phone number is listed in the book."