A uniform wire of \[16\,\Omega \] is made into the form of a square. Two opposite corners of the square are connected by a wire of resistance \[16\,\Omega \]. The effective resistance between the other two opposite corners is [EAMCET (Med.) 1995]

• A.                    \[32\,\Omega \]
• B.                                      \[20\,\Omega \]
• C.                    \[8\,\Omega \]            
• D.            \[4\,\Omega \]