A nurse is assisting with the care of a preschooler who is immediately postoperative following a tonsillectomy. Which of the following actions should the nurse take?

A. Applying an ice collar helps reduce swelling and discomfort in the throat after a tonsillectomy. Cold therapy is effective in the early postoperative period to minimize bleeding and pain. B. Using a straw should be avoided after a tonsillectomy because it may cause trauma to the surgical site and increase the risk of bleeding. C. Coughing and deep breathing should be avoided after a tonsillectomy as they can cause irritation or dislodge the blood clots in the surgical site, leading to bleeding. D. Providing cherry fruit juice is not ideal, as acidic or red-colored liquids can irritate the throat and may make it difficult to monitor for post-operative bleeding.