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
In which of the following condition is blood osmolality increased: 
Select and explain. 
A. Diarrhea, B. SIADH, C. Psychogenic polydipsia, D. Cerebral toxoplasmosis
A: Diarrhea
Answer: A: Diarrhea 
Explanation: 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