Kuro Shio is also a warm water current also known as Japan Current. It
occurs on the west side of the North Pacific Ocean.
Benguela current is a cold water current that flows towards the north beside the west coast of Southern Africa.
Oyashio is a cold subarctic ocean current that progresses in the South and circulates counterclockwise.
Labrador is the cold
water current found in the North Atlantic Ocean.
Therefore the pair which is not correctly matched is B.
And the answer is option B.