<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 21-year-old man presents with fever, headache, and clouded sensorium for the past 3 days. His fever is low-grade. He says his headache is mild-to-moderate in intensity and associated with nausea, vomiting, and photophobia. There is no history of a sore throat, pain on urination, abdominal pain, or loose motions. He smokes 12 cigarettes daily and drinks alcohol socially. Past medical history and family history are unremarkable. His vital signs include: blood pressure 12080 mm Hg, pulse 106min, temperature 37.3C 99.2F. On physical examination, he is confused, disoriented, and agitated. Extraocular movements are intact. The neck is supple on flexion. He is moving all his 4 limbs spontaneously. A noncontrast CT scan of the head is within normal limits. A lumbar puncture is performed, and cerebrospinal fluid results are still pending. The patient is started on empiric intravenous acyclovir. Which of the following clinical features favors encephalitis rather than meningitis?? A: Clouded sensorium, B: Fever, C: Headache, D: Nausea and vomiting, E: Photophobia,  <response>: This is a clinical reasoning question involving differentiating between encephalitis and meningitis based on the clinical presentation. The key features that favor encephalitis over meningitis are:- Clouded sensoriumconfusionaltered mental status - indicates involvement of brain parenchyma rather than just meninges- Mild-moderate headache - severe headache more common in meningitis - Normal CT head - rules out structural lesions, favors diffuse process like encephalitis- No neck stiffness - more common in meningitisSo the feature that most favors encephalitis is the clouded sensoriumconfusion.A: Clouded sensorium 