<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 58-year-old woman with type 2 diabetes mellitus comes to the physician because of a 3-month history of right lower extremity pain and burning while walking. The pain subsides with rest. She has smoked one pack of cigarettes daily for the past 30 years. Her current medications include metformin, atorvastatin, and aspirin. Examination shows a lack of hair and decreased skin temperature over the right foot. The right pedal pulse is not palpable. The physician adds a drug to her regimen that causes vasodilation and inhibits the aggregation of platelets and the proliferation of smooth muscle cells. Which of the following drugs was most likely added?? A: Dabigatran, B: Eptifibatide, C: Bosentan, D: Clopidogrel, E: Cilostazol,  <response>: This is a clinical vignette describing a patient with type 2 diabetes mellitus who presents with symptoms and signs consistent with peripheral arterial disease affecting the right lower extremity. The key findings are a 3-month history of right leg pain with walking that improves with rest, lack of hair and decreased skin temperature over the right foot, and absence of the right pedal pulse. These indicate inadequate blood flow to the right lower extremity likely due to atherosclerotic peripheral arterial disease. The question asks which drug was most likely added to her regimen that would improve blood flow and inhibit platelet aggregation and smooth muscle cell proliferation. All the choices provided are vasodilators andor inhibitors of platelet aggregation. Choice A dabigatran is an anticoagulant that inhibits thrombin but does not inhibit platelet aggregation or cause vasodilation. Choice B eptifibatide inhibits platelet aggregation but does not directly cause vasodilation. Choice C bosentan is a vasodilator but does not inhibit platelet aggregation. Choice D clopidogrel inhibits platelet aggregation but does not directly vasodilate. Choice E cilostazol causes vasodilation and inhibits platelet aggregation, making it the best answer.E: Cilostazol 