A nurse is completing a client's history and physical examination. Which information should the nurse consider subjective data?

A. Petechiae are small, pinpoint hemorrhages and are considered objective data that can be observed and documented by the nurse. B. Blood pressure is a vital sign and objective data that can be measured using a sphygmomanometer. C. Cyanosis is a physical sign indicating low oxygenation in the blood and is objective data that can be observed. D. Nausea is a subjective symptom reported by the client, reflecting their internal experience and cannot be measured or observed directly.