<span>I think It is a) Textiles</span>
Greece is a crossroad of cultures, it is in Europe, but also it is near Egypt and the East. So it had a big exchange of ideas and philosophy, it developped science and trade, and being surrounded by the sea, it developped maritime skills (military and trading fleet). This lasted form antiquity to modern history.
It used to be against ther law but now the law was reinforced so they are allowed
