The Coriolis effect impacts ocean currents by causing them to be deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. For the Gulf Stream, which flows in the Northern Hemisphere, this results in a northeastward turn. For the Brazil Current, which flows in the Southern Hemisphere, the Coriolis effect causes it to turn southwest.
Therefore, the correct response is: It turns the Gulf Stream northeast and the Brazil Current southwest.