<prompt> Which among the following is the hallmark of acute inflammation?VasoconstrictionStasisVasodilation and increase in permeabilityLeukocyte margination  <response>: Ans, c Vasodilation and increase in permeabilityRef: Robbins pathology 9th ed. 173 Hallmark of acute inflammation is increased vascular permeability leading to the escape of protein-rich exudate into the extravascular tissue, causing edema. 