Final answer:
The statement "Would Sam prefer hot dogs or chicken nuggets, if given a choice?" represents an example of directed focus used by the nurse to understand a toddler's meal preferences.
Step-by-step explanation:
The nurse's statement that provides an example of directed focus is: "Would Sam prefer hot dogs or chicken nuggets, if given a choice?" This question specifically targets the child's feeding preferences by presenting two clear options, eliciting a more focused response about what the child likes to eat. Directed focus is useful in clinical settings for obtaining specific information and is part of effective communication and assessment strategies within health professions.