A nurse is assessing the pain of an 8-year-old child using the numerical pain scale. Which of the following questions should the nurse ask the child?

A. This question assesses behavioral or observational signs of pain, which is useful for younger children or nonverbal patients, but it does not provide a quantitative measure suitable for the numerical pain scale. B. The numerical pain scale asks the child to rate their pain on a scale from 0 (no pain) to 10 (worst pain possible). Children around 8 years old are usually cognitively able to understand and use a numerical scale, making this question appropriate for direct self-reporting of pain intensity. C. This question corresponds to the verbal descriptor scale, not the numerical pain scale. While it is useful for children who have difficulty with numbers, an 8-year-old can typically use the numerical scale reliably. D. This question corresponds to the Wong-Baker FACES Pain Rating Scale, which is often used for younger children or those who have difficulty with abstract numerical concepts. It is not the numerical scale being assessed.