[单选题]
When the first law of thermodynamicsrf j.r9.tgwm sn a: 19)h)5stqjo div3mjt7vd yq 1a d:86j4lcn09xvnv3+m d p, $Q = \Delta U + W$, is applied to an ideal gas that is taken through an isochoric process,
A. $\Delta U = 0$
B. $W = 0$
C. $Q = 0$
D. none of the above
