Final answer:
None of the provided statements indicate an effective understanding of injury prevention for a 6-month-old infant, as they do not pertain to the context of preventing injuries specific to an infant's environment and developmental stage. Effective teaching would have resulted in acknowledgments relating to the need for constant supervision and keeping potential choking hazards away from the infant.
Step-by-step explanation:
The nurse is reinforcing education about injury prevention with the parent of a 6-month-old infant. The statements by the parent that indicate that teaching has been effective would likely include acknowledgments of the risks posed by small objects, the need to always supervise the child, and understanding the appropriate measures to prevent choking or other injuries common in infancy. For example, demonstrating an understanding that the infant should not have access to small, non-food items like the dog's food, as they have a tendency to put everything in their mouth (point A). From the provided information, however, none of the responses directly relate to a 6-month-old infant situation regarding injury prevention. Instead, these responses address varied issues without indicating an understanding of the injury prevention measures specific to the context of the question.
Additionally, as a healthcare professional, it's important to emphasize routine safety measures such as using appropriate car seats, preventing access to potential hazards, and ensuring a safe sleep environment. It would also be pertinent to instruct parents to keep objects that could pose a choking risk, or harmful substances that could be ingested, out of the infant's reach.