The correct options are
A Movement of warm ocean water to cooler parts is called warm ocean current.
B Movement of cool ocean water to warmer parts is called cold ocean current.
When warm ocean waters move towards cooler regions, it is called a ‘warm ocean current. When cold ocean waters move towards hotter regions, it is called a ‘cold ocean current’. Gulf Stream is one of the well known warm ocean currents and Labrador current is one of the major cold currents.