Shows a diagonal symmetric arrangement of capacitors and a battery.
.
If the potential of `C` is zero, then identify the incorrect statement.
A. `V_(A)=+20 V`
B. `4(V_(A)-V_(B))+2(V_(D)-V_(B))=2V_(B)`
C. `2(V_(A)-V_(D))+2(V_(B)-V_(D))=4 V_(D)`
D. `V_(A)=V_(B)+V_(D)`