Choice A reason:

This statement is correct and is an appropriate preoperative intervention. Encouraging deep breathing and coughing exercises helps prevent postoperative respiratory complications such as atelectasis and pneumonia.

Choice B reason:

This statement is incorrect and is not an appropriate preoperative intervention. Placing the client in a supine position with legs elevated can increase intraabdominal pressure and worsen cholecystitis symptoms.

Choice C reason:

This statement is incorrect and is not an appropriate preoperative intervention. The client should be on a restricted diet, avoiding fatty and heavy foods, to prevent exacerbation of cholecystitis symptoms and reduce the risk of complications during surgery.

Choice D reason:

This statement is incorrect and is not an appropriate preoperative intervention. Anticoagulants are not typically administered preoperatively for cholecystectomy. Their use may increase bleeding risk during surgery and is generally avoided unless medically indicated.