<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 32-year-old woman presents with new left-arm pain. She was previously well but for 2 months has had episodes of low-grade fever, night sweats, and dizziness. She works as a stock assistant and has noticed left arm pain when she stocks shelves. She is taking a multivitamin but no other medications. On physical examination, her blood pressure is 12672 in her right arm, but it cannot be measured in her left arm. The left radial pulse is not detectable. There is a bruit over the left subclavian area. Femoral and pedal pulses are normal and no abdominal bruits are heard. The left hand is cool but has no other evidence of ischemia. Which of the following is the most likely etiology of this patients condition?? A: Subclavian steal syndrome, B: Raynauds phenomenon, C: Fibromuscular dysplasia, D: Kawasaki disease, E: Aortic coarctation,  <response>: This is a clinical case question involving a 32-year-old woman with new left arm pain and episodes of low-grade fever, night sweats, and dizziness over the past 2 months. Key findings on physical exam include unmeasurable blood pressure in the left arm, absent left radial pulse, bruit over the left subclavian area, and a cool left hand without ischemia. The differential diagnosis includes:- Subclavian steal syndrome: Decreased blood flow in the subclavian artery causes steal of blood from the vertebral artery, resulting in arm ischemia. Explains the arm symptoms.- Raynauds phenomenon: Vasospastic disorder causing intermittent ischemia of the extremities. But would not explain bruit or consistently low BP in that arm.- Fibromuscular dysplasia: Can cause stenosis of subclavian artery. But more common in younger women and would not explain systemic symptoms. - Kawasaki disease: Vasculitis that can involve subclavian arteries, but seen in children. - Aortic coarctation: Congenital narrowing of aorta, but would cause lower extremity BP discrepancy.A: Subclavian steal syndrome 