Concept:Ships used for international transport are large vessels designed to travel across oceans and seas.
Explanation:International transport moves passengers and cargo between countries.
Ships that perform this function must be big, durable, and capable of long ocean voyages.
Ocean liners are built specifically for such cross-border routes.
Yachts, launchers, and trawlers are used for leisure, local travel, or fishing, not international transport.
Answer:A. oceanliners