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."

You isolate an infectious substance capable of causing disease in plants, but you do not know whether the infectious agent is a bacterium, virus, viroid, or prion. you have four methods at your disposal to analyze the substance and determine the nature of the infectious agent.i. treat the substance with enzymes that destroy all nucleic acids and then determine whether the substance is still infectious.ii. microscope.iii. culture the substance on nutritive medium, away from any plant cells.iv. treat the sample with proteases that digest all proteins and then determining whether the substance is still infectious.if you already know that the infectious agent was either bacterial or viral, which method(s) listed above would allow you to distinguish between these two possibilities? a) ib) iic) ii or iiid) iv