The Mother of a Client with Head Lice Has Completed

The mother of a client with head lice has completed the applications of topical medication. What is the best instruction by the nurse at this time?

A) "Keep your child's hair short so it will be easier to treat next time."
B) "You are fine now; just watch your child for a reinfection."
C) "Check the heads of your child's friends before allowing them to play together."
D) "Remove all nits from the hair shaft with a nit comb or a fine-tooth comb."