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: Pathology
Most characteric features of acture inflammation is - 
Select and explain. 
A. Vasoconstriction, B. Vascular stasis, C. Vasodilati on and increased vascular permeability, D. Margination of leukocytes
C: Vasodilati on and increased vascular permeability
Answer: C: Vasodilati on and increased vascular permeability 
Explanation: Ans. is 'c' i.e., Vasodilatation and increased vascular permeability o The hallmark of acute inflammation is increased vascular permeability leading to escape of protein rich fluid (exudate) into the extravascular tissue