Ok, I understand that Iron Golems spawn in a 16x16x6 area (6 being the height) from the center of the village. Does this mean the two blocks of the door, two blocks below the door and two blocks above the door? OR! does it mean 6 blocks from the bottom of the door?
From the picture below, which accurately depicts the spawning height for Iron Golems, A or B? (assuming all doors are at the same level)
A source would also be greatly appreciated.