A Child Comes to See the Pediatrician and Breaks Out

A child comes to see the pediatrician and breaks out the next day in the characteristic lesions of chickenpox. The nurse working in this pediatric clinic knows that:

A) this is not a problem, as the child was not contagious before the skin lesions erupted
B) only children physically touched by the child who developed chickenpox were exposed
C) all the children in the doctor's office that day need to be quarantined and isolated
D) the doctor needs to see and evaluate all the children who were in the office and exposed