You Have Just Concluded an Employment Interview with an Applicant

You have just concluded an employment interview with an applicant you like, who is qualified for the inside sales job you have been interviewing for, and have made a conditional offer of employment. You tell the applicant that you want her to take a medical exam, and if she passes, she has the job. She is at first obviously happy and seemingly relieved, but then breaks down in tears. She tells you that a medical will show that she is HIV positive. What should you do?

A) Tell her not to worry, and that if she otherwise passes the medical exam, she has the job
B) Tell her that you're sorry to hear about her affliction, and obviously, you cannot hire her
C) Report her to the County Health authorities