$Iff\left(x\right)=\underset{n\to \infty }{\lim }\frac{\log (2+x)-x^{2n}\sin x}{1+x^{2n}}$ then f(x)  is discontinuous at 

• A

  x = 1 only 

• B

  x = -1 only 

• C

  x = -1, 1 only 

• D

  no point