Final answer:
The immediate response when a child is injured should be to seek medical attention, with the secondary steps being to address the family dynamics to prevent future occurrences.
Step-by-step explanation:
The question pertains to the immediate and appropriate response when a child, Lindsey, is injured during her parents' argument. In such a situation, ensuring the child's physical well-being is the top priority. Therefore, the correct answer is D. Medical attention for Lindsey. Once her physical injuries are addressed, it is essential to consider the safety and emotional well-being of the child in such a family dynamic.
Engaging with services that can provide a longer-term solution to familial issues may become necessary, including family counseling and parenting classes. In cases where there is significant concern about the child's safety or ongoing risk of harm, it might be appropriate to involve Child Protective Services to ensure the child's safety. However, without immediate threat beyond the injury, the sole focus initially should be on obtaining medical care for Lindsey's physical injury.