[单选题]
When the first law of:r:j6r4pf27 g3rq o h. obar5+caefpy thermodt 20xp5lwu08murokbxl on v9 3 o5*hj7ynamics, $Q = \Delta U + W$, is applied to an ideal gas that is taken through an isobaric process,
A. $\Delta U = 0$
B. $W = 0$
C. $Q = 0$
D. none of the above
