<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 25-year-old man comes to the physician because of a 2-week history of numbness in his left lower extremity. One month ago, he sustained a fracture of the neck of the left fibula during soccer practice that was treated with immobilization in a plaster cast. Physical examination of the left lower extremity is most likely to show which of the following findings?? A: Impaired dorsiflexion of the foot, B: Loss of sensation over the medial calf, C: Inability to stand on tiptoes, D: Decreased ankle reflex, E: Loss of sensation on the sole of the foot,  <response>: This is a clinical vignette about a 25-year-old man with numbness in his left lower extremity after sustaining a fracture of the neck of the left fibula 1 month ago. The question is asking which physical exam finding is most likely in this patient.Based on the history, the likely diagnosis is injury to the common fibular nerve, which is commonly injured along with fibula fractures. The common fibular nerve provides motor innervation to the muscles that dorsiflex the foot and sensory innervation to the lateral leg and dorsum of the foot. Choice A is correct, as injury to the common fibular nerve would cause impaired dorsiflexion of the left foot. Choices B and E are incorrect because the common fibular nerve does not supply sensation to the medial calf or sole of the foot. Choice C is incorrect because the tibial nerve supplies the muscles involved in standing on tiptoes. Choice D is incorrect because the ankle reflex is mediated by the S1 nerve root, which would be unaffected by an injury to the common fibular nerve.A: Impaired dorsiflexion of the foot 