A nurse is caring for a 2-year-old child who is hospitalized and throws a tantrum when his parents leave. Which of the following toys should the nurse provide to alleviate the child's stress?

The correct answer is C: Stuffed animal. A stuffed animal provides comfort and a sense of security to a child, helping to alleviate stress and anxiety when separated from parents. It serves as a transitional object, offering emotional support and a familiar connection. Building blocks (B) may not provide the same level of comfort. A toy hammer and pounding board (A) may not address the emotional needs of the child and could potentially increase stress. A picture book about hospitals (D) may not provide immediate comfort during a tantrum.