Question

Which best describes ancient Greek war ships?

They were large and used for trade.
They were small and built to travel great distances.
They were small, with just one sail.
They were large, with three rows of oars and multiple sails.

Answer 1

There were at least two types: for trading and military purposes. Probably the second fits the most.

Answer 2

They were large, with three rows of oars and multiple sails