A patient who has myasthenia gravis and Fair minus (3/5) strength of the dominant extremity wants to be as independent as possible during meals. The patient is not able to complete self-feeding despite having a universal cuff, plate guard, and an elongated straw. Which intervention would be MOST BENEFICIAL for promoting progress toward the patient's goal? A) Adaptations to the universal cuff and eating utensils B )Instruction in the use of a mobile arm support C) Training on how to facilitate a tenodesis grasp D) Upper extremity strengthening and endurance exercises