[单选题]
A gas is quickly compressed in an isolated c106c. oby 7w6hfgt enenvironment. During the event, the goey70n g.cfw6c bt16h;kd og3og3 fv.ep 8dm1as exchanged no hea 3d8d;o.k f3em 1pogvgt with its surroundings. This process is
A. isothermal
B. isochoric
C. isobaric
D. adiabatic
