<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 30-year-old man presents with fatigue and low energy. He says that he has been feeling down and tired on most days for the last 3 years. He also says that he has had difficulty concentrating and has been sleeping excessively. The patient denies any manic or hypomanic symptoms. He also denies any suicidal ideation or preoccupation with death. A physical examination is unremarkable. Laboratory findings are significant for the following:Serum glucose fasting 88 mgdLSerum electrolytes Sodium 142 mEqL; Potassium: 3.9 mEqL; Chloride: 101 mEqLSerum creatinine 0.8 mgdLBlood urea nitrogen 10 mgdLHemoglobin Hb 15 gdLMean corpuscular volume MCV 85 flReticulocyte count 1Erythrocyte count 5.1 millionmm3Thyroid-stimulating hormone 3.5 μUmLMedication is prescribed to this patient that increases norepinephrine nerve stimulation. After 2 weeks, the patient returns for follow-up and complains of dizziness, dry mouth, and constipation. Which of the following drugs was most likely prescribed to this patient?? A: Clonidine, B: Venlafaxine, C: Lithium, D: Paroxetine, E: Phenylephrine,  <response>: Based on the information provided in the question stem, this patient is presenting with symptoms of depression, including fatigue, low energy, feeling down, difficulty concentrating, and excessive sleep. The lack of manichypomanic symptoms and suicidal ideation points towards a diagnosis of major depressive disorder. The lab findings are unremarkable. The patient was started on a medication that increases norepinephrine signaling. After 2 weeks, he developed side effects of dizziness, dry mouth, and constipation. These side effects are consistent with norepinephrine reuptake inhibition. Of the choices provided, venlafaxine is a serotonin-norepinephrine reuptake inhibitor SNRI that increases norepinephrine signaling. The other options are less likely to cause this side effect profile.B: Venlafaxine 