A client has been diagnosed with herpes simplex virus. The client states that, modern medicine ...

A client has been diagnosed with herpes simplex virus. The client states that, modern medicine produces more and more antivirals every year, and so the treatment should be simple.
 
  Which of the following statements listed below is the best response?
  A)
  The recent rise of drug resistance has significantly hampered the elimination of viruses.
  B)
  The cell coat of viruses is particularly resilient to the available synthetic antivirals.
  C)
  The use of antivirals is severely limited by the unwanted adverse effects that they cause.
  D)
  Treatment options for viruses are often limited because what destroys viruses often damages your own body cells.