When You Head to Bed at Night,you Bring a Glass

When you head to bed at night,you bring a glass of tap water with you and set it on the nightstand.Upon waking in the morning,you discover there are tiny gas bubbles along the sides of the container.The best explanation for this is

A) the concentration of a particular gas in a liquid equilibrates to match the concentration of that gas in the air to which the liquid is exposed.
B) different gasses have the same solubility in liquids.
C) the partial pressure of a gas in a liquid is equal to the amount freely diffusing in the liquid plus the amount bound to large molecules within the liquid.
D) the partial pressure of a particular gas in a liquid equilibrates to match the partial pressure of that gas in the air to which the liquid is exposed.
E) as the partial pressure of a particular gas in an air sample increases,the concentration of that gas in a liquid exposed to that air sample decreases.