Which of the following expressions regarding entropy is not correct?
A. `DeltaS_("system")=(q)/(T)`
B. `DeltaS_("system")=DeltaS_("total")+DeltaS_("surrounding")`
C. `DeltaS=DeltaS_("final")-S_("initial")`
D. `DeltaS_("total")=DeltaS_("system")+DeltaS_("surrounding")`