How did Greek trading ships differ from fighting ships? Trading ships used many more sails than fighting ships to ensure speed.
Trading ships were smaller because they traveled shorter distances.
Trading ships were larger because they carried supplies and goods.
Trading ships used three rows of oars for maneuvering.

Trading ships were smaller because they traveled shorter distances.

Explanation:

Greek trading ships were much different from fighting ships in the sense that the trading ships had to be smaller so they could be able to sail along the coast while fighting ships had to be bigger to carry enough men, ammunition and other supplies.

Trading ships were smaller because they traveled shorter distances. Or B

Explanation:

b. sec, foreign relations