Need help #12 what skills did Greek need to master to become successful traders

Explanation:

what skills did Greek need to master to become successful traders.They found ways to adapt to their rocky environment(  Mountains separated ancient Greece into regions, which were organized as separate city-states), and they  raised animals in the places where a lot of grazing land had been and they planted crops in the well suited areas, and the things  they had a surplus of, Greeks traded these items to  other regions around the Black Sea and the Mediterranean  Sea for grain, wood, and  metal work, which they didn't have a lot of; The Greeks also traded for  nuts, figs, cheese, and flax, which was used to make linen.

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if it were me, i would pick c. c is the best answer because it's basically saying go on a non-violent strike for india