An elderly male suffering from allergic conjunctivities uses a topical drug that prevents the release of chemical mediators from mast cells.Which of the following is the likely mechanism of action of this drug:

• A. Inhibition of Leukotriene synthesis
• B. Inhibition of 5-Lipoxygenase
• C. Inhibition/Blockage of (Bita)2
• D. Inhibition of calcium influx