A resistance wire connected in the left gap of a metre bridge balances a $10\Omega$ resistance in the right gap at a point which divides the bridge wire in the ratio $3:2$. If the length of the resistance wire is $1.5\text{m}$, then the length of $1\Omega$ of the resistance wire is:

1. A
   $1.0\times 10^{-2}\text{m}$
2. B
   $1.0\times 10^{-1}\text{m}$
3. C
   $1.5\times 10^{-1}\text{m}$
4. D
   $1.5\times 10^{-2}\text{m}$