<prompt> Contraction of endothelial cytoskeleton in acute inflammation leads toDelayed transient increase in permeabilityEarly transient increase in permeabilityDelayed permanent increase in permeabilityEarly permanent increase in permeability  <response>: Increased vascular permeability is the hallmark of acute inflammation.RememberEarly transient increase is due to Endothelial cell contractionDelayed transient increase in permeability is due to Direct endothelial injuryDelayed permanent increase Endothelial cell retraction is due to endothelial cell damage 