<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 45-year-old man is brought by his wife with a complaint of an ongoing progressive history of memory problems for 6 months. He is an accountant by profession. He has difficulty remembering things and events, which has affected his job. He began using a diary to aid with remembering his agenda. His wife also says that he has wet his pants multiple times in the past 2 months and he avoids going out. He has been smoking 1 pack of cigarettes daily for the past 20 years. His past medical history is unremarkable. The vital signs include: blood pressure of 13476 mm Hg, a pulse of 70 per minute, and a temperature of 37.0C 98.6F. His mini-mental state examination MMSE result is 2230. His extraocular movements are normal. The muscle tone and strength are normal in all 4 limbs. The sensory examination is unremarkable. He has an absent Rombergs sign. He walks slowly, taking small steps, with feet wide apart as if his feet are stuck to the floor. The CT scan of the head is shown in the image. What is the most likely diagnosis of the patient?? A: Early-onset Alzheimers disease, B: Frontotemporal dementia, C: Normal-pressure hydrocephalus, D: Parkinsons disease, E: Progressive supranuclear palsy,  <response>: Based on the information provided in the question stem, the key findings are:- 45-year-old man with 6-month history of progressive memory problems affecting his work as an accountant. Using a diary to help remember things. - Wetting his pants and avoiding going out suggest possible behavioral changes.- 20 pack-year smoking history. Unremarkable past medical history. - Vital signs are normal. - MMSE 2230 indicates cognitive impairment. - Extraocular movements normal. Muscle tone and strength normal. Sensory exam normal. - Absent Rombergs sign. - Gait changes - walking slowly with small steps and feet wide apart.- CT head shows enlarged ventricles out of proportion to sulcal enlargement, suggesting communicating hydrocephalus.The progressive memory and cognitive changes over 6 months in a 45-year-old suggest a neurodegenerative process. The gait changes and CT findings point towards normal pressure hydrocephalus as the most likely diagnosis. The other choices are less likely based on the clinical presentation.C: Normal-pressure hydrocephalus 