<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 45-year-old woman is brought to the Emergency Department by her husband due to increasing confusion. He reports that she has been urinating a lot for the past month or so, especially at night, and has also been constantly drinking water and tea. Lately, she has been more tired than usual as well. Her past medical history is significant for bipolar disorder. She takes lithium and a multivitamin. She has a levonorgestrel IUD. Her blood pressure is 14090 mmHg, pulse rate is 95min, respiratory rate is 16min, and temperature is 36C 96.8F. At physical examination, she is drowsy and disoriented. Her capillary refill is delayed and her mucous membranes appear dry. The rest of the exam is nondiagnostic. Laboratory studies show:Na: 148 mEqLK: 4.2 mEqLSerum calcium: 11.0 mgdLCreatinine: 1.0 mgdLUrine osmolality: 190 mOsmkgSerum osmolality: 280 mOsmkgFinger-stick glucose: 120 mgdLFluid resuscitation is initiated. Which of the following is the most likely diagnosis?? A: SIADH, B: Psychogenic polydipsia, C: Diabetes Mellitus, D: Nephrogenic diabetes insipidus, E: Central diabetes insipidus,  <response>: Based on the information provided in the question stem, the key findings are:- 45-year-old woman with increasing confusion and urinating a lot, especially at night- Constantly drinking water and tea, more tired than usual - Past medical history of bipolar disorder, takes lithium - Physical exam shows she is drowsy, disoriented, delayed capillary refill, dry mucous membranes- Lab studies show: normal sodium, potassium, calcium, creatinine; low urine osmolality, normal serum osmolality; normal fingerstick glucose- She is resuscitated with fluidsThe lab findings of low urine osmolality with normal serum osmolality indicate an inability to concentrate urine. This, along with her polyuria and polydipsia, point towards diabetes insipidus as the most likely diagnosis. Her lithium use also predisposes her to nephrogenic diabetes insipidus. The normal serum sodium goes against SIADH. The other options do not fit with the clinical presentation.D: Nephrogenic diabetes insipidus 