A nurse is teaching the parent of a school-age child about bicycle safety. Which of the following instructions should the nurse include in the teaching?

"Your child's feet should be 3 to 6 inches off the ground when seated on the bicycle."

"Your child should walk the bicycle through intersections."

"Your child should ride the bicycle against the flow of traffic."

"Your child should keep the bicycle at least 3 feet from the curb while riding in the street."