The force or a point charge +Q kept at a distance of 'd' from the surface of an infinite grounded metal plate in a permittivity ϵ is

• A. 0
• B. \(\frac{{{Q^2}}}{{16\pi \epsilon{d^2}}}\) away from the plate
• C. \(\frac{{{Q^2}}}{{16\pi \epsilon{d^2}}}\) towards the plate
• D. \(\frac{{{Q^2}}}{{4\pi \epsilon{d^2}}}\) towards the plate