In the northern hemisphere, gyres primarily move warm water from equatorial regions toward polar regions. Therefore, the correct description among the options you provided is:
They move warm water from equatorial regions to polar regions.
Gyres are large-scale circular ocean currents that are driven by the Earth's rotation, wind patterns, and the positions of the continents. In the northern hemisphere, the major gyres, such as the North Atlantic and North Pacific gyres, typically circulate warm water poleward.