<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 33-year-old man is brought to a psychiatric emergency room in St. Louis by policemen who report that they found him loitering at the main bus station. The patient is unable to recall why he was at the bus station, but he does have a bus ticket in his pocket from Chicago to St. Louis. When asked what his name is, he replies I dont know. He has no source of identification and cannot recall his own past medical history or medications. His temperature is 98.8F 37.1C, blood pressure is 13075 mmHg, pulse is 85min, and respirations are 20min. On examination, the patient is alert but is not oriented to person, place, or time. He appears anxious and upset but is appropriately conversant and cooperative with the examination. His pupils are equally round and reactive to light. The rest of the examination is normal. A urine toxicology screen is negative. A family member of the patient contacts the hospital the next morning and reports that the patient is a soldier who recently returned from a deployment in Afghanistan. He was last seen at his home in Chicago. Which of the following is most consistent with this patients condition?? A: Bipolar I disorder, B: Depersonalization disorder, C: Dissociative fugue disorder, D: Dissociative identity disorder, E: Post-traumatic stress disorder,  <response>: Based on the information provided, the patient is unable to recall his identity or past medical history, was found disoriented in a different city than his home, and has recently returned from military deployment. This presentation is most consistent with dissociative fugue, a dissociative disorder characterized by sudden unexpected travel away from home and inability to recall ones past. The other options can be ruled out:- Bipolar I disorder: No evidence of manicdepressive episodes.- Depersonalization disorder: No detachment from ones selffeelings of unreality. - Dissociative identity disorder: No evidence of alternate identitiespersonalities.- Post-traumatic stress disorder: Does not explain dissociative amnesia and unexpected travel.C: Dissociative fugue disorder 