What choice best describes a wind that is caused by a convection current? A: Warm air is more dense than cool air, so the warm air rises and cool air sinks and takes it's place creating wind.

B: Warm air is less dense than cool air, so the warm air rises and cool air sinks and takes it's place creating wind.

C: Cool air is more dense than warm air, so the cool air rises and warm air sinks and takes it's place creating wind.

D: Cool air is less dense than warm air, so the cool air rises and warm air sinks and takes it's place creating wind.