Consider the following stencil.Discretize the diffusive term of the one-dimensional steady-state diffusion problem based on this stencil. (Note: Flow direction is from left to right).

• A. \((\Gamma\frac{d\phi}{dx})_e-(\Gamma\frac{d\phi}{dx})_w \)
• B. \((\Gamma \frac{d\phi}{dx})_E-(\Gamma\frac{d\phi}{dx})_W\)
• C. \((\Gamma A\frac{d\phi}{dx})_E-(\Gamma\frac{d\phi}{dx})_W\)
• D. \((\Gamma A\frac{d\phi}{dx})_e-(\Gamma\frac{d\phi}{dx})_w\)