A patient was hospitalized 2 years ago with a resistant bacterial infection. The patient is admitted ...

A patient was hospitalized 2 years ago with a resistant bacterial infection. The patient is admitted for an unrelated problem and placed on contact isolation. The parents question the need for this action. Which response by the nurse is best?
 
  A.
  It is possible that your child could still contaminate the nursing staff.
  B.
  It's our policy to isolate anyone who has had this infection in the past.
  C.
  This seems distressing for you; would you like me to call the charge nurse?
  D.
  Your child may be colonized with the bacteria so we isolate until we know.