JAMB - Commerce (2015 - No. 2)
The vessels that operate on specific route on high seas and oceans are
Coastal Liners and Cargo Liners
Cargo Liners and Tramp liners
Passenger liners and Tramp liners
Passenger Liners and Cargo Liners
Explication
Ocean liners are vessels that operate on specific on high seas and oceans and they operate on fixed time schedule