$\text{ If }f\left(x\right)=|x-1|-\left[x\right]\text{ (Where }\left[X\right]\text{ is greatest integer less than or equal to }x)\text{then}$

• A

  $f\left(1^{+}\right)=-1;f\left(1^{-}\right)=0$

• B

  $f\left(1^{+}\right)=0=f\left(1^{-}\right)$

• C

  $\underset{x\to 1}{lim} f\left(x\right)\text{ exists }$

• D

  $\text{Cannot say any thing }$