How much positive and negative charge is there in a cup (250 g) of water?

Question

$\begin{array}{1 1}(A)\;1.34 \times 10^7 \;c \\(B)\;1.47 \times 10^7 \;c \\(C)\;2.34 \times 10^7 \;c \\(D)\;9.34 \times 10^7 \;c \end{array} $