A client arrives at a health clinic stating, "I am here to have my tuberculin skin test read." The nurse notes that there is a 7mm indurated area at the injection site. Which statement made by the nurse correctly describes this result?a. "The result indicates that you have active tuberculosis."b. "The result indicates that you are infected with the tuberculosis organism."c. "The result indicates that there are no tuberculin antibodies in your system."d. "The result indicates that you have a secondary infection related to the tuberculin organism."