A nurse is preparing to administer an enteral feeding to a preschooler who has a nasogastric tube. Which of the following actions should the nurse plan to take?

A. Residual fluid should not be discarded unless instructed by a healthcare provider, as it provides important information about gastric emptying and tolerance to previous feedings. B. Formula should be brought to room temperature before administration to avoid causing discomfort or gastric irritation. Cold formula can cause cramps and slow gastric motility. C. Elevating the head of the bed to a 45-degree angle helps prevent aspiration during feeding and promotes proper digestion. This position is critical for patient safety. D. The feeding rate should be individualized based on the child's tolerance and prescribed regimen, and 30 mL/min is typically too fast for a preschooler, increasing the risk of aspiration or intolerance.