<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 75-year-old woman presents with a sudden onset of weakness and difficulty walking. She also complains of nausea and palpitations. She was working in her garden about an hour ago when her problems started. The patient says she is feeling warm even though the emergency room is air-conditioned. Past medical history is significant for major depressive disorder MDD, diagnosed 5 years ago, hypertension, and osteoporosis. Current medications are aspirin, lisinopril, alendronate, calcium, venlafaxine, and a vitamin D supplement. Her pulse is 110min, respiratory rate is are 22min, and blood pressure is 160100 mm Hg. Physical examination is unremarkable. A noncontrast CT scan of the head, electrocardiogram ECG, and routine laboratory tests are all normal. Which of the following most likely accounts for this patients condition?? A: Ischemic stroke, B: Dehydration due to physical activity, C: Aspirin overdose, D: Missed dose of venlafaxine, E: Missed dose of lisinopril,  <response>: This is a clinical vignette describing a 75-year-old woman with sudden onset of weakness, difficulty walking, nausea, palpitations, and feeling warm despite being in an air-conditioned environment. She has a history of MDD, hypertension, and osteoporosis and takes several medications including an antidepressant venlafaxine and an ACE inhibitor lisinopril. Vital signs show tachycardia, normal respiratory rate, and elevated blood pressure. The question asks to identify the most likely cause of her symptoms.Key findings are the sudden onset of non-specific symptoms in a patient on venlafaxine, an antidepressant. A CT head, ECG, and labs were normal. This makes stroke, arrhythmia, and electrolyte abnormalities less likely. Aspirin overdose is unlikely with normal labs. However, a missed dose of venlafaxine could cause withdrawal symptoms like nausea, tachycardia, and hypertension. D: Missed dose of venlafaxine 