When the nurse brings medications to a patient with rheumatoid arthritis, the patient refuses the prescribed methotrexate. the patient tells the nurse, "my arthritis isn't that bad yet. the side effects of methotrexate are worse than the arthritis." the most appropriate response by the nurse is:
a. "you have the right to refuse to take the methotrexate."
b. "methotrexate is less expensive than some of the newer drugs."
c. "it is important to start methotrexate early to decrease the extent of joint damage."
d. "methotrexate is effective and has fewer side effects than some of the other drugs."

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