[单选题]
Ten joules of heat energu 2d.p1qx0f xmfrgx r/o5w.mo +))n wry w iz5ucm/ue-d 8k0(i mskf.ngz h6f55 are transferred to a sample of ideal gas at constant volume. As a result, the internal energy of is hz5 8 k ud6c-/w(5 nkg0mmfefu.z5ithe gas
A. increases by 10 J.
B. increases by less than 10 J.
C. increases by more than 10 J.
D. remains unchanged.