Problem: A parent brings in her 6-month-old daughter for a well-child visit. It is her first child. The infant is in the 3rd percentile for weight and the 10th percentile for height, and her disposition is cranky. Her mother reports that she seldom naps well and still does not sleep through the night. She wonders if this is normal behavior. You suspect that the infant is not appropriately nourished. What is a common cause of infant malnutrition? Need Assignment Help? A. Renal disorders causing caloric loss B. Malabsorption of nutrients due to gastrointestinal disorders C. Malignancy causing increased metabolic requirements D. Poor parental understanding of correct formula-mixing ratios