A nurse is assessing a client's wound dressing and observes a watery red drainage. The nurse should document this drainage as which of the following?

A. Sanguineous drainage is characterized by bright red blood; it indicates fresh bleeding and does not include watery components. B. Serosanguineous drainage is a combination of clear, watery fluid and blood, often appearing light pink to red. The description of watery red drainage fits this category, making it the correct choice. C. Serous drainage is clear, pale yellow fluid without blood, indicating a non-bloody exudate. It does not match the description of watery red drainage. D. Purulent drainage is thick, opaque, and often yellow, green, or brown due to the presence of pus and infection. It does not apply here as the drainage is described as watery red.