During discharging of lead steerage battery,which of the following is false ?

Question

$\begin{array}{1 1}(A)\;Density\; of \;electrolytic\; solution\; decreases\\(B)\;PbSO_4\;is\;formed\;at\;both\;electrodes\\(C)\;H_2O\;is\;consumed\\(D)\;H_2SO_4\;is\;consumed\end{array}$