Five identical resistors each of resista...

Five identical resistors each of resistance `1Omega` are initially arranged as shown in the figure by clear lines. If two resistances are added as shown by the dashed lines then change in resistance in final and initial arrangement is

A

`2Omega`

B

`1Omega`

C

`3Omega`

D

`4Omega`

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The correct Answer is:

A

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