How Does an Extratropical Cyclone Dissipate

Multiple Choice

How does an extratropical cyclone dissipate?

A) The pressure gradient weakens as cold air displaces the warm air around the cyclone.
B) The pressure gradient strengthens as cold air moves aloft of the warm air.
C) The fronts move apart so there is no more interaction.
D) The cyclone moves out over water and loses strength.
E) Cold and warm air is mixed to make air whose temperature is an average of the two.