<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 60-year-old man with a 1-year history of recurrent aspiration pneumonia is brought to the emergency department by his daughter after being found unconscious and gasping for air in his bed. Despite resuscitative efforts, the patient dies. Autopsy of the patient shows degeneration of the corticospinal tracts and anterior horn cells of the upper cervical cord. There is asymmetrical atrophy of the limb muscles, the diaphragm, and the intercostal muscles. Which of the following drugs would have most likely slowed the progression of this patients condition?? A: Nusinersen, B: Glatiramer acetate, C: Corticosteroids, D: Inactivated virus vaccine, E: Riluzole,  <response>: This is a clinical vignette describing a patient with symptoms and pathology consistent with amyotrophic lateral sclerosis ALS. The question asks which drug would most likely have slowed disease progression in this patient.Choice A, nusinersen, is used to treat spinal muscular atrophy but would not affect ALS. Choice B, glatiramer acetate, is used to treat multiple sclerosis but would not affect ALS.Choice C, corticosteroids, may provide temporary improvement in strength but do not slow ALS progression. Choice D, inactivated virus vaccine, is not a relevant treatment for ALS.Choice E, riluzole, is the only FDA-approved drug for ALS that has been shown to modestly slow disease progression and extend survival.E: Riluzole 