Final answer:
The correct answer is d) "I need to make sure that the child is isolated from the other children for at least 2 weeks to prevent the spread of the virus to them." In the convalescent stage of pertussis, the child is no longer contagious and does not need to be isolated.
Step-by-step explanation:
The correct answer is d) "I need to make sure that the child is isolated from the other children for at least 2 weeks to prevent the spread of the virus to them."
In the convalescent stage of pertussis, the child is no longer contagious and does not need to be isolated. The child can return to school or participate in activities as long as they are feeling well enough.
Options a, b, and c are all correct statements.