Answer:
When the liquid is A) cooled.
Step-by-step explanation:
The solvency of gases in fluids diminishes with expanding temperature. Alluring intermolecular collaborations in the gas stage are basically zero for generally substances. At the point when a gas breaks down, it does so in light of the fact that its particles interface with dissolvable atoms.
The warmth is discharged, when these new appealing connections structure, dissolving most gases in fluids is an exothermic procedure. On the other hand, adding warmth to the arrangement gives warm vitality that beats the alluring powers between the gas and the dissolvable particles, along these lines diminishing the dissolvability of the gas.
On the other hand when cooled, it facilitates faster dissociation thus increasing the rate of dissolvation of liquid.