During a Clinic Visit, the Parents of a 15-Month-Old Ask

During a clinic visit, the parents of a 15-month-old ask what disease and injury prevention topics would be appropriate to discuss at this age. Which response by the nurse is the most appropriate?

A) "It's never too early to teach a child to wear a helmet when riding a bicycle."
B) "Teaching simple handwashing is a good topic at this age."
C) "Tell the child over and over to stay away from water unless you are with him."
D) "Tell him firmly 'no' when he tries to cross the street."