Concept:Cold ocean currents cool the air above them, affecting the temperature of winds that blow over the coast.
Explanation:When on-shore winds travel across a cold current, the air in contact with the water is cooled.
The current therefore influences the temperature of the prevailing winds.
These cooled winds then move over the adjacent coastland, lowering its temperature.
Thus, the reduction in coastal temperature is due to the cold current modifying the wind, not due to rainfall, sunshine, or air pressure.
Answer:The correct option is B. The current influences the temperature of the prevailing winds.