A nurse is caring for a child who is 2 hr postoperative following a tonsillectomy. Which of the following fluid items should the nurse offer the child at this time?

A. Cranberry juice is acidic and can irritate the throat, causing discomfort and potential bleeding. B. Orange juice is also acidic and can cause similar irritation and discomfort. C. Crushed ice is soothing, non-acidic, and helps keep the throat moist without irritating it, making it an appropriate choice post-tonsillectomy. D. A vanilla milkshake, while not acidic, is thick and dairy-based, which can increase mucus production and may not be well tolerated initially after surgery.