Which of the following is a correct method for measuring intake and output in young infants in the hospital?

Rationale: A. Parental estimates can be inaccurate and are not a reliable method for precise intake measurement. B. While observing for dehydration is important, it does not provide exact intake/output data. C. Monitoring the feeding schedule helps track intake times but not actual volume consumed or output. D. Weighing diapers is the standard and most accurate method for measuring urine output in infants who are not toilet-trained. The weight difference (1 gram = ~1 mL of urine) gives a precise measurement.