What happens when an air parcel rises higher in the troposphere

Once a parcel rises into the upper troposphere it is so cold that the wet adiabatic and dry adiabatic lapse rates will approach each other. A parcel of air expands and becomes less dense as it rises. This occurs because the air pressure lowers around the parcel as it increases in altitude.

Explanation:

i believe the answer is a

the gas collects in coils that then becomes a liquid that then flows through the coils inside the refrigerator