Three resistance P,Q, R each of $\text{2\hspace{0.17em}}\Omega$  and an unknown resistance ‘S’ from the four arms of a wheat stone bridge circuit. When a resistance of $\text{6\hspace{0.17em}}\Omega$ is connected in parallel to ‘S’ the bridge gets balanced . What is the value of ‘S’. 

• A

  $\text{2\hspace{0.17em}}\Omega$

• B

  $\text{3\hspace{0.17em}}\Omega$

• C

  $\text{6\hspace{0.17em}}\Omega$

• D

  $\text{1\hspace{0.17em}}\Omega$