The volume of water squeezed out from the parallelepiped is _______________

• A. \(dq=(\frac{∂V_x}{∂x}+\frac{∂V_y}{∂y}+\frac{∂V_z}{∂z})dxdydz \)
• B. \(dq=(V_x+\frac{∂V_x}{∂x} \frac{dx}{2})dydz-(V_z+\frac{∂V_z}{∂z} \frac{dz}{2})dxdy \)
• C. \(dq=(V_x-\frac{∂V_x}{∂x} \frac{dx}{2})dydz \)
• D. \(dq=(V_x-\frac{∂V_x}{∂x} \frac{dx}{2})dydz-(V_y-\frac{∂V_y}{∂y} \frac{dy}{2})dxdz+(V_z-\frac{∂V_z}{∂z} \frac{dz}{2})dxdy \)