This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
A 55-year-old woman who has a history of severe depression and had a radical mastectomy for carcinoma of breast one year back develops polyuria nocturia and excessive thirst - 
Laboratory values are as follows: Serum sodium 149 m Eq/L, Serum potassium 3.6 m Eq/L, Serum calcium 9.5 mg/dl, Glucose 110 mg.dl, Bun 30 mg/dl, Urine osmolarity 150 in Osm kg. The most likely clinical diagnosis would be - 
Select and explain. 
A. Psychogenic polydipsia, B. Renal glycosuria, C. Hypercalcicuria, D. Diabetes insipidus
D: Diabetes insipidus
Answer: D: Diabetes insipidus 
Explanation: None