B) You get it because it will prevent you from getting the flu if ďthey guessed rightĒ which is borderline ignorance and youíre not a dumb person. And even if they donít precisely nail the strain, it reduces the severity.
C) itís not just about you. Itís about helping protect those around you who canít get the vaccine. Whether they are allergic to eggs or have some other condition that prevents it.
D) If youíve ever had real influenza, you would make sure you never get it again.