Ten days after treating a 34-year-old patient with tuberculosis, you are given a tuberculin skin test, which yields a positive result. This MOST likely indicates that: Select one: A. you are actively infected with tuberculosis and should be treated immediately. B. you were exposed to another infected person prior to treating the 34-year-old patient. C. the disease is dormant in your body, but will probably never cause symptoms. D. you contracted the disease by casual contact instead of exposure to secretions.