Q. A nurse is caring for a 45 year old female patient who undergone mastectomy. Which of the following interventions is appropriate to prevent Lymphadenoma as a postoperative complication?

(a) Increasing potency of wound drainage tube 
(b) Frequently elevating the arm of the affected side above the level of the heart
(c) placing the arm on the affected side in a dependent position
(d) restricting movement of the affected arm