Final answer:
The nurse's best recommendation in this situation would be to have the child go to preschool before starting kindergarten.
Step-by-step explanation:
The nurse's best recommendation in this situation would be option D: Postpone kindergarten and have the child go to preschool.
Since the child has not attended preschool and the father is unsure about his readiness for kindergarten, it would be beneficial for the child to have some exposure to a structured learning environment before starting kindergarten. Preschool will provide the child with opportunities to develop social and cognitive skills, as well as prepare them for the expectations of a kindergarten classroom.
Attending preschool will help the child become familiar with routines, classroom rules, and social interactions with peers. It will also allow them to engage in activities that promote their cognitive development, such as learning letters, numbers, and shapes, and practicing fine motor skills through arts and crafts.