Why does carbon dioxide escape when you open the can of soda?

a). Because it was bottled under high pressure and the atmospheric pressure is less. Carbon dioxide only dissolves at higher than normal pressure.

b). Because it was bottled under low pressure and the atmospheric pressure is more. Carbon dioxide only dissolves at higher than normal pressure.

c). Because it was bottled under high pressure and the atmospheric pressure is less. Carbon dioxide only dissolved at lower than normal pressure.