A is for the Alpha Cygnus star system.
B is for Bajoran Buggerers.
C is for Ceti Alpha 5. "Nuke it from orbit. Only way to be sure." Is what they should have done.
D is for Deltan pheromones.
E is for Elasian tears, which also contained some very powerful pheromones.
F is for Ferengi Rules of Acquisition. Something they just made up to sound clever.