A Patient Has the Nursing Diagnosis of Impaired Swallowing and Complains

A patient has the nursing diagnosis of Impaired Swallowing and complains of frequent heartburn. What is the most appropriate action by the nurse?

A) Assist the patient in maintaining a sitting position for 30 minutes after the meal.
B) Teach the patient the "chin tuck" technique when swallowing.
C) Check the patient's mouth for pocketing of food.
D) Assist the patient to a 90-degree sitting position, or as high as tolerated, during meals.