Question 1907Navigation General

The correct answer is A) Labrador Current. The Labrador Current is the cold ocean current that meets the warm Gulf Stream between latitudes 40° and 43°N, forming the "cold wall" in this region. This cold, southward-flowing current originates from the Canadian Arctic and carries cold, low-salinity water down the coast of Labrador and Newfoundland, creating a sharp temperature gradient with the warmer Gulf Stream to the east. The other options are incorrect because the Greenland Current flows along the east coast of Greenland, the North Atlantic Current is a warm, northward-flowing current, and the North Cape Current flows along the northern coast of Norway, none of which meet the Gulf Stream in the specified latitude range to form the "cold wall" described in the question.