<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 5-year-old boy who recently emigrated from Nigeria is brought to the emergency department because of a 2-day history of lower leg weakness, swallowing difficulty, and drooling of saliva. He has not yet received any childhood vaccinations. Two days after admission, the patient develops shortness of breath. Pulse oximetry shows an oxygen saturation of 64. Despite resuscitative efforts, the patient dies of respiratory failure. At autopsy, examination of the spinal cord shows destruction of the anterior horn cells. Neurological examination of this patient would have most likely shown which of the following findings?? A: Positive Babinski sign, B: Hyporeflexia, C: Sensory loss, D: Myoclonus, E: Pronator drift,  <response>: This is a clinical vignette describing a 5-year-old boy who recently emigrated from Nigeria and presents with lower leg weakness, swallowing difficulty, drooling, and respiratory failure leading to death. The question asks about expected neurological exam findings in this patient. Based on the description, this patient likely has polio, which is caused by poliovirus infection. Poliovirus infects and destroys anterior horn cells in the spinal cord, leading to flaccid paralysis. Therefore, the neurological exam in this patient would be expected to show hyporeflexia due to loss of anterior horn cells.B: Hyporeflexia 