Final answer:
The Gulf Stream moves along the East Coast of the United States and provides a moderate type C climate for much of Western Europe. El Niño is an event off the west coast of South America that causes changes in global weather patterns.
Step-by-step explanation:
The Gulf Stream (A) is a warm ocean current that moves along the East Coast of the United States. It originates in the Gulf of Mexico and crosses the Atlantic Ocean to Europe, where it provides a moderate type C climate for much of Western Europe. On the other hand, El Niño (B) is an event that occurs every few years off the west coast of South America. It causes changes in global weather patterns and can result in extreme weather in various regions.