A nurse is providing teaching to the parents of a 1-year-old child about strategies to alleviate stress and enhance their child's coping mechanisms. Which of the following statements by the parents indicates an understanding of the teaching?

A. Familiar objects, such as a favorite stuffed animal or blanket, provide comfort and security for a toddler. Replacing it with a new item does not offer the same emotional reassurance and may increase stress. B. While cognitive stimulation is important for older children, 1-year-olds do not benefit from workbooks. At this age, play and sensory activities are more effective in reducing stress and promoting coping. C. Allowing unsupervised play in hallways poses safety risks and does not provide a structured or comforting environment. Hospital play should be supervised and developmentally appropriate. D. Singing familiar songs provides comfort, predictability, and emotional security for toddlers. Familiar routines and auditory cues help reduce anxiety and support coping in stressful hospital environments.