Four equal point charges Q each are placed in the xy-plane at (0, 2), (4, 2), (4, -2) and (0, -2). The work required to put a fifth charge Q at the origin of the coordinate system will be

• A. \(\frac{{{Q^2}}}{{4\pi {\varepsilon _0}}}\)
• B. \(\frac{{{Q^2}}}{{4\pi {\varepsilon _0}}}\left( {1 + \frac{1}{{\sqrt 3 }}} \right)\)
• C. \(\frac{{{Q^2}}}{{2\sqrt 2 \pi {\varepsilon _0}}}\)
• D. \(\frac{{{Q^2}}}{{4\pi {\varepsilon _0}}}\left( {1 + \frac{1}{{\sqrt 5 }}} \right)\)