At least you have a common room...
Anyway my archnemesis in an unlettered idiot in year 11 below me... His group makes fun of my name and continually do it behind my back as well... They are nothing but cowards who dare not face me like a man.
My tutor taught me the same thing, and i think it might actually even be considered superior compared to the other method of guessing the answer and differentiating it...
Naval strength was the thing that allowed supplies to be brought in from the aetolian peninsula... Also, the ships protect the 'bridge' that connects persia with greece.