The correct answer is C. A cold front.
A cold front is a boundary separating cold air from warm air. It is a fast-moving weather front that can cause severe weather, including thunderstorms, heavy rain, and hail. Cold fronts are typically associated with a low-pressure system, and they can move at speeds of up to 60 miles per hour.
A parallel of latitude is an imaginary line that circles the Earth parallel to the equator. There are 180 parallels of latitude, each of which is 111.11 kilometers (68.78 miles) apart. The parallels of latitude are used to measure latitude, which is the distance north or south of the equator.
A tornado is a violently rotating column of air that forms from a thunderstorm. Tornadoes can reach wind speeds of up to 300 miles per hour, and they can cause extensive damage. Tornadoes are most common in the United States, but they can occur in other parts of the world as well.
A warm front is a boundary separating warm air from cold air. It is a slow-moving weather front that can cause clouds, rain, and drizzle. Warm fronts are typically associated with a high-pressure system, and they can move at speeds of up to 10 miles per hour.