This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General physiology, Subject name: Physiology
Osmotic pressure can be calculated by using 
Select and explain. 
A. Bernoulli's law, B. Van't hoff law, C. Ohm's law, D. Poiseulle's law
B: Van't hoff law
Answer: B: Van't hoff law 
Explanation: Osmotic pressure is calculated by van hoofs rule. (REF: GANONG&;S REVIEW OF MEDICAL PHYSIOLOGY, PAGE NO - 7)