Lipoxins synthesized from the arachidonic acid act by-: (A) Increase leucocyte migration, adhesion, chemotaxis, (B) Vasoconstriction, (C) Increased vascular permeability, (D) Decreases leucocyte migration, adhesion, chemotaxis
Answer is D. Effects of lipoxins (LXA4, LXB4) are

Inhibit neutrophil chemotaxis and leukocyte recruitment (major action).
Vasodilatation
Promote monocytic phagocytosis of apoptotic neutrophils.