Answer:
B. La Niña
The subtropical jet stream is a band of strong winds that typically blow from west to east across the southern United States. The direction and strength of the jet stream are influenced by a number of factors, including temperature and pressure differences between the equator and the poles. La Niña is a climate pattern characterized by cooler-than-average sea surface temperatures in the tropical Pacific Ocean, which can affect the jet stream and bring cold, wet winter weather to the southeastern United States.