In a region of space, the electric field E→ = Eoxi^ + Eoyj^). Consider an imaginary cubical volume of edge 'a' with its edges parallel to the axes of coordinates. Now,
(A) the total electric flux through the faces 1 and 3 is Eoa3
(B) the charge inside the cubical volume is 2εoEoa3
(C) the total electric flux through the faces 2 and 4 is 2E0a3
(D) the charge inside the cubical volume is εoEoa3