This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2017, Subject name: Medicine
[{'content': 'In which of the following condition is blood osmolality increased: \nSelect and explain. \nA. Diarrhea, B. SIADH, C. Psychogenic polydipsia, D. Cerebral toxoplasmosis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Diarrhea = Loss of water leads to concentration in body SIADH = Dilutional hyponatremia Psychogenic Polydipsia = Dilutional condition Cerebral toxoplasmosis leads to SIADH which again result in dilution', 'role': 'assistant'}]