Choose the correct option for the free expansion of an ideal gas under adiabatic conditions from the following:
- A$q=0, \Delta T \neq 0, w=0$
- B$q=0, \Delta T < 0, w \neq 0$
- C$q \neq 0, \Delta T = 0, w = 0$
- D$q = 0, \Delta T = 0, w = 0$
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