Assertion : The solubility of a gas in a liquid increases with increase of pressure.
Reason : The solubility of a gas in a liquid is directly proportional to the pressure of the gas.
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not correct explanation of A
(c) A is true but R is false
(d) A and R are false