An 18-month-old is admitted to the emergency department in hypovolemic shock. What would be the correct order of nursing interventions (assuming MD orders are written)?

A. This is the correct sequence: oxygen first to improve oxygenation, followed by a rapid IV fluid bolus (20 mL/kg) to restore intravascular volume, and then medications if needed. B. Maintenance fluids are inadequate for shock; boluses are required. C. A 10 mL/kg bolus is insufficient in pediatric hypovolemic shock; the guideline is 20 mL/kg. D. Medications should not be started before volume resuscitation in hypovolemic shock.