Which of the following explains why wind travels from an area with colder air to an area with warmer air? A. The warmer air rises and the colder air fills in underneath it.

B. The less dence colder air spreads out and pushes the warm air.

C. The warm air moves under the cooler air, creating a vacuum.

D. Warm air can’t contain the higher energy of the cold air.

NEED THE ANSWER ASAP!!