<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 12-year-old boy who recently emigrated from Pakistan presents with fever, muscle pain, and weakness of the trunk, abdomen, and legs. The patients mother says that he has not been vaccinated. Physical examination reveals fasciculation and flaccid paralysis of the lower limbs. A CSF analysis reveals lymphocytosis with normal glucose and protein levels. A throat swab reveals an RNA virus. Which of the following would most likely be destroyed by the virus in this patient?? A: Basal ganglia, B: Posterior horn cells of the spinal cord, C: Myelin sheath of neurons, D: Muscle cells, E: Anterior horn of the spinal cord,  <response>: This is a clinical vignette describing a case of acute flaccid paralysis in a 12-year-old boy who recently emigrated from Pakistan and has not been vaccinated. The key findings are fever, muscle weakness, fasciculations, flaccid paralysis of the lower limbs, CSF lymphocytosis, and detection of an RNA virus on throat swab. The question asks which anatomical structure is most likely being destroyed by the virus. Based on the presentation of acute flaccid paralysis affecting the lower limbs, this is most consistent with a poliovirus infection affecting the anterior horn cells of the spinal cord. Poliovirus is an RNA virus that causes selective destruction of motor neurons in the anterior horn resulting in flaccid paralysis.E: Anterior horn of the spinal cord 